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Seagate Technology Llc patents (2016 archive)


Recent patent applications related to Seagate Technology Llc. Seagate Technology Llc is listed as an Agent/Assignee. Note: Seagate Technology Llc may have other listings under different names/spellings. We're not affiliated with Seagate Technology Llc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Seagate Technology Llc-related inventors


Modular cooling system

Technologies for modular cooling systems for cooling electronic components installed in equipment racks are provided herein. A modular cooling system comprises a cold plate and a support manifold connected to the cold plate. ... Seagate Technology Llc

Midplane docking system

Technologies for midplane docking systems for connecting adjacent levels of docks are provided herein. An extendable connection system includes: a connector cable, the connector cable having a first end and a second end; a male connector, the male connector connected to the first end of the connector cable, the male connector including male connecting mechanism; and a female connector, the female connector connected to the second end of the connector cable and including a female connecting mechanism adapted to connect with the male connecting mechanism, wherein the male connector is extendable relative to the female connector.. ... Seagate Technology Llc

Systems and methods for sub-zero threshold characterization in a memory cell

Systems and methods relating generally to data processing, and more particularly to systems and methods for characterizing a solid state memory. In one embodiment, the systems and methods may include programming a first cell of a solid state memory device to a negative voltage, programming a second cell of the solid state memory device to a positive voltage, wherein the second cell is adjacent to the first cell, calculating a voltage shift on the negative voltage programmed to the first cell, characterizing a shifted voltage level on the first cell as an interim voltage, and subtracting the voltage shift from the interim voltage to yield an actual voltage on the first cell.. ... Seagate Technology Llc

Modular data storage device testing system

A data storage device testing system may be configured with at least a test slot, a loader assembly, and an exchange assembly. The loader assembly can be positioned to respectively engage and disengage a test deck with the test slot. ... Seagate Technology Llc

Write encroachment mitigation system

The disclosed technology provides for a method and system comprising determining a write-encroachment threshold of a recording medium, determining a track as off-track and one or more tracks substantially near the off-track as unwriteable, flagging the one or more tracks substantially near the off-track track, and writing write data for the one or more flagged tracks to a media cache. In a recovery process, the write data can be later transferred back to the flagged tracks.. ... Seagate Technology Llc

Systems and methods for last written page handling in a memory device

Systems and method relating generally to solid state memory, and more particularly to systems and methods for recovering data from a solid state memory. In one embodiment, the systems and methods include providing a flash memory circuit including a superset of memory cells, accessing a data set from a group of memory cells using a standard reference value to distinguish bit values in the group of memory cells, and based at least in part on determining that the group of memory cells was a last written group of memory cells, re-accessing a data set from the group of memory cells using a last written reference value to distinguish bit values in the group of memory cells.. ... Seagate Technology Llc

Resistive temperature sensors for improved asperity, head-media spacing, and/or head-media contact detection

A sensor supported by a head transducer has a temperature coefficient of resistance (tcr) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. ... Seagate Technology Llc

Write head offset for shingled magnetic recording (smr) disk drives

Methods, systems, and apparatuses are described for provisioning storage devices. An example method includes determining a write status of an adjacent track that is adjacent to a target track of a shingled magnetic recording (smr) disk drive. ... Seagate Technology Llc

Controller, data storage device, and data communication system having variable communication speed

Apparatuses having variable communication speeds are disclose. In one example, an apparatus may comprise a controller configured to: receive a signal from a host, the signal being compatible with a data communication protocol at a first data communication speed; selectively implement a first data communication protocol from a plurality of data communication protocols to communicate with a first memory or implement a second data communication protocol from the plurality of data communication protocols to communicate with a second memory based on the data communication speed; store data in the first memory via the first data communication protocol when the data communication speed is a first speed; and store data in the second memory via the second data communication protocol when the data communication speed is a second speed that is different than the first speed.. ... Seagate Technology Llc

Systems and methods for dynamically programming a flash memory device

The present inventions are related to systems and methods for storing data, and more particularly to systems and methods for writing data to a storage device.. . ... Seagate Technology Llc

Magnetoresistive sensor fabrication

Implementations described and claimed herein include a reader structure, comprising a first reader, including a sensor stack and a top shield structure, the top shield structure comprises a synthetic antiferromagnetic shield (saf) structure, including a reference layer including at least a layer of nife and an impurity additive, an rkky coupling layer rkky coupling layer (e.g., ru layer), and a pinned layer. In another implementation, the rl of the saf shield structure of a first reader includes at least a layer of amorphous magnetic material. ... Seagate Technology Llc

Magnetic devices including film structures

A device including a magnetic structure, the magnetic structure having a substrate adjacent surface and a second, opposing surface, the magnetic structure having a near field transducer (nft), wherein the nft includes gold or an alloy thereof, and is positioned at the second surface an overcoat structure; and a film structure, the film structure positioned between the magnetic structure and the overcoat structure, the film structure having a total thickness of not greater than about 100 Å, and the film structure including: a first interfacial structure having a first and a second opposing surface; a second interfacial structure having a first and a second opposing surface; and an intermediate structure wherein the first surface of the first interfacial structure is positioned adjacent the nft of the magnetic structure, and the second surface of the second interfacial structure is positioned adjacent the overcoat structure, and the intermediate structure is positioned between the first interfacial structure and the second interfacial structure, and wherein the first interfacial structure includes one or more rare earth elements, one or more alkaline earth metals, one or more alkali metals, or a combination thereof.. . ... Seagate Technology Llc

Enclosure system for computing equipment

The disclosed technology provides an enclosure system for computing equipment and a method for manufacturing an enclosure system, which includes a front enclosure base configured to secure a plurality of tray modules, each of the plurality of tray modules comprising a printed circuit board to connect a plurality of electronic components and being connected at a rear end to a connectivity midplane. The front enclosure base has a front end taller than the rear end such that the front end is configured to structurally support the plurality of tray modules and the rear end allows connecting rear faces of each of the plurality of tray modules to the connectivity midplane.. ... Seagate Technology Llc

Surface features mapping

Provided herein is an apparatus, including a light source configured to illuminate a surface of an article. In addition, the apparatus includes a light detector array. ... Seagate Technology Llc

12/08/16 / #20160360561

Optically recognized code for wireless pairing

A method for establishing network connections is described. In one embodiment, the method includes receiving, via a processor of a first computing device, an input associated with enabling a second computing device to establish a connection with a network device, generating, via the processor, a customized encoded symbol based at least in part on the input, and providing, via the processor, the customized encoded symbol for use by the second computing device to establish the connection with the network device.. ... Seagate Technology Llc

12/08/16 / #20160359314

Adaptive power dumper

Technologies are described herein for a power dumper module capable of adapting to power requirements of its implementation. An exemplary adaptive power dumper module includes a power dump circuit configured to dump excess regenerative energy from a load when a voltage at an output to the load exceeds a trip voltage level, and an adaptive circuit configured to select the trip voltage level from a plurality of trip voltage levels based on a bus voltage of a power supply supplying power to the load.. ... Seagate Technology Llc

12/08/16 / #20160358625

Data storage component test deck

A test deck may be employed as part of a data storage component testing system. A test deck can consist of at least a bottom cover mating to a top cover to define an enclosed testing region configured to house a data storage medium, transducing head, and head suspension. ... Seagate Technology Llc

12/08/16 / #20160357631

Zero-one balance management in a solid-state disk controller

An ssd controller maintains a zero count and a one count, and/or in some embodiments a zero/one disparity count, for each read unit read from an slc nvm (or the lower pages of an mlc). In an event that the read unit is uncorrectable in part due to a shift in the threshold voltage distributions away from their nominal distributions, the maintained counts enable a determination of a direction and/or a magnitude to adjust a read threshold to trade the threshold voltage shift and restore the read data zero/one balance. ... Seagate Technology Llc

12/08/16 / #20160357485

Systems and methods for latency based data recycling in a solid state memory system

Systems and method relating generally to solid state memory, and more particularly to systems and methods for recycling data in a solid state memory. The systems and methods include receiving a data set maintained in a memory device, applying at least one iteration of a data decoding algorithm to the data set by a data decoder circuit to yield a decoded output, counting the number of iterations of the data decoding algorithm applied to the data set to yield an iteration count, and recycling the data set to the memory device. ... Seagate Technology Llc

12/08/16 / #20160357452

Sector translation layer for hard disk drives

An apparatus having a memory and a controller is disclosed. The memory may have a write head and sectors in tracks. ... Seagate Technology Llc

12/08/16 / #20160356861

Magnetic sensing device with reduced shield-to-shield spacing

A magnetic sensor assembly includes first and second shields each comprised of a magnetic material. The first and second shields define a physical shield-to-shield spacing. ... Seagate Technology Llc

12/01/16 / #20160353600

Carrier used for mounting data storage drive into enclosure

A data storage carrier includes a middle member with at least one handle between ends of the middle member. Side members are coupled to the respective ends of the middle member via living hinges. ... Seagate Technology Llc

12/01/16 / #20160351222

Near field transducer (nft) including peg and disc of different materials

Devices having air bearing surfaces (abs), the devices include a near field transducer (nft) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein the disc includes a disc material and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the disc material has a first real part of the permittivity and a peg material has a second real part of the permittivity and the second real part of the permittivity is not greater than the first real part of the permittivity.. . ... Seagate Technology Llc

12/01/16 / #20160351221

Near field transducers (nfts) including barrier layer and methods of forming

Devices having an air bearing surfaces (abs), the devices including a near field transducer (nft) that includes a disc having a front edge; a peg, the peg having a front surface at the air bearing surface of the apparatus, an opposing back surface, a top surface that extends from the front surface to the back surface, two side surfaces that expend from the front surface to the back surface and a bottom surface that extends from the front surface to the back surface; and a barrier layer, the barrier layer separating at least the back surface of the peg from the disc and the barrier layer having a thickness from 10 nm to 50 nm.. . ... Seagate Technology Llc

12/01/16 / #20160351214

Near field transducers (nfts) and methods of making

Methods of forming a nft the methods including forming a hard mask positioned over at least a portion of the rod, the hard mask including at least one layer; patterning a resist mask over the hard mask, the resist mask having an edge positioned over at least a portion of the rod; etching a portion of the hard mask to expose a back edge of the rod and to form a back edge of the hard mask, wherein the back edge of the rod is equivalent to the back edge of the peg; and wherein a forward portion of the rod which is the portion of the rod forward of the back edge is covered by the hard mask; forming a disc mask including a void configured to form a disc of a nft, the disc mask being formed over at least a portion of the hard mask so that the exposed back edge of the rod is within the void configured to form the disc; etching an area exposed in the void of the disc mask to remove both a rear portion of the rod and the surrounding dielectric up to the back edge of the hard mask edge; depositing a disc material in the etched void, wherein the back edge of the hard mask defines the front edge of the disc and the back edge of the rod is in contact with the front edge of the disc; and polishing the deposited disc material to form a top surface substantially planar with the top of the forward rod portion.. . ... Seagate Technology Llc

12/01/16 / #20160351211

Multipiece near field transducers (nfts)

Devices having air bearing surfaces (abs), the devices including a near field transducer (nft) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein at least one of a portion of the peg, a portion of the disc, or a portion of both the peg and the disc include a multilayer structure including at least two layers including at least one layer of a first material and at least one layer of a second material, wherein the first material and the second material are not the same and wherein the first and the second materials independently include aluminum (al), antimony (sb), bismuth (bi), boron (b), barium (ba), calcium (ca), cerium (ce), chromium (cr), cobalt (co), copper (cu), erbium (er), gadolinium (gd), gallium (ga), germanium (ge), gold (au), hafnium (hf), indium (in), iridium (ir), iron (fe), lanthanum (la), magnesium (mg), manganese (mn), molybdenum (mo), nickel (ni), niobium (nb), osmium (os), palladium (pd), platinum (pt), rhenium (re), rhodium (rh), ruthenium (ru), scandium (sc), silicon (si), silver (ag), strontium (sr), tantalum (ta), thorium (th), tin (sn), titanium (ti), vanadium (v), tungsten (w), ytterbium (yb), yttrium (y), zirconium (zr), or combinations thereof.. . ... Seagate Technology Llc

12/01/16 / #20160351210

Devices including a near field transducer (nft) including peg and disc from different materials

Devices that have an air bearing surface (abs), the device includes a near field transducer (nft) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein the disc includes a disc material that includes gold or an alloy thereof and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the peg material has a real part of the permittivity that is not greater than that of gold.. . ... Seagate Technology Llc

12/01/16 / #20160351209

Thermally robust near-field transducer peg

A near-field transducer includes first and second stacked base portions having a common outline shape. The second base portion is proximate alight delivery structure. ... Seagate Technology Llc

12/01/16 / #20160350185

Flexible super block sizing for failed sector recovery

The disclosed technology provides for a method or system comprising determining size of a super block for a track zone in a storage medium based on at least one parameter of the track zone, wherein the super block includes a super parity for recovery of a failed sector within the super block.. . ... Seagate Technology Llc

11/24/16 / #20160344540

Timing error processor that uses the derivative of an interpolator function

A digitized signal is processed via an interpolator. The interpolator performs timing adjustment on the digitized signal. ... Seagate Technology Llc

11/24/16 / #20160343401

Contamination reduction head for media

A cleaning head and methods for removing contaminants from a data storage media, the cleaning head having a cleaning surface comprising a self-assembled monolayer, with the cleaning surface leading a read/write transducer. The self-assembled monolayer is selected to have a terminal functional group that has a high affinity to the contaminant(s) desired to be attracted and/or removed.. ... Seagate Technology Llc

11/24/16 / #20160343396

Heat-assisted rotating disk magnetometer for ultra-high anisotropy magnetic measurements

An apparatus comprises a spindle to rotate a magnetic recording medium and a magnetic field generator to expose a track of the medium to a dc magnetic field. The magnetic field generator is configured to saturate the track during an erase mode and reverse the dc magnetic field impinging the track during a writing mode. ... Seagate Technology Llc

11/24/16 / #20160343395

Procedure for setting laser and heater power in hamr device

A heater power of a heat-assisted magnetic recording head is set to an initial power to induce an initial head-medium clearance. For a plurality of iterations, a heater power at an optimum laser power is determined that achieve a target clearance. ... Seagate Technology Llc

11/17/16 / #20160336045

Humidity control for enclosure

Aspects of this disclosure are directed to methods, apparatuses and approaches involving the use of a moisture absorbing material (e.g., desiccant) to control moisture. As may be implemented consistent with one or more embodiments, moisture is removed from an environmental control module that includes a desiccant material contained within a package. ... Seagate Technology Llc

11/10/16 / #20160329077

Motor spin up with auxiliary power boost

An apparatus and associated method that contemplate spinning up an electric motor to an operational speed by accelerating the motor with a primary power, and before the motor is accelerated to the operational speed, boosting the primary power with an auxiliary power for a predetermined interval.. . ... Seagate Technology Llc

11/10/16 / #20160329072

One or more non-disk disk drive components having a lubricant composition that is miscible with a disk media lubricant composition

The present disclosure is directed to disk drives that have one or more disks and one or more additional disk drive components. The one or more disk can include a first lubricant composition. ... Seagate Technology Llc

11/03/16 / #20160324032

Storage system with cross flow cooling of power supply unit

Apparatus and method for cooling a power supply unit in a storage system. In some embodiments, a storage system includes a first section for receiving a plurality of storage media, a second section having a power supply unit, and a plenum arranged in communication with the first and second sections. ... Seagate Technology Llc

11/03/16 / #20160322074

Noise mitigation for write precompensation tuning

The disclosed technology provides techniques for mitigating write-to-write bit error rate fluctuations that decrease accuracy of write precompensation (wpc) tuning according to one implementation, such write-to-write bit error rate fluctuations are mitigated if a predetermined pattern is written at a particular radial offset from a target data track prior to testing a wpc register in association with the target data track. Selection of the particular radial offset can be performed according to an iterative offset track clean-up disclosed herein.. ... Seagate Technology Llc

11/03/16 / #20160322071

Intialization of magnetic features

The embodiments disclose an alternating current (ac) erase process configured to cancel out existing polarity of stack magnetic features on both sides of the stack and an ac reset process configured to initialize the polarity of the device stack magnetic features of both sides of a stack configured to create a uniform polarity.. . ... Seagate Technology Llc

11/03/16 / #20160320990

Preferred zone scheduling

A data storage system and associated method are provided wherein a policy engine continuously collects qualitative information about a network load to the data storage system in order to dynamically characterize the load and continuously correlates the load characterization to the content of a command queue of transfer requests for writeback commands and host read commands, selectively limiting the content with respect to writeback commands to only those transfer requests for writeback data that are selected on a physical zone basis of a plurality of predefined physical zones of a storage media.. . ... Seagate Technology Llc

11/03/16 / #20160319419

Methods of forming mgo barrier layer

A method of making an mgo barrier layer for a tmr sensor, the method including depositing a first mg layer in a first chamber, depositing a second mg layer on the first mg layer using a reactive oxide deposition process in the presence of oxygen in the first chamber or in a second chamber different than the first chamber, depositing a third mg layer on the second mgo layer in either the first chamber, the second chamber, or a third chamber, and annealing the first layer, the second layer, and the third layer to form an mgo barrier layer.. . ... Seagate Technology Llc

10/27/16 / #20160315635

Error correction code (ecc) selection using probability density functions of error correction capability in storage controllers with multiple error correction codes

A method of characterizing a distribution of a maximum number of errors that first cause uncorrectable error correction code failure for hard low density parity check codes includes selecting a low density parity check code, generating encoded data with the low density parity check code and writing the encoded data to a number of memory blocks, reading the encoded data from the number of memory blocks and determining any pages having a first uncorrectable error correction code failure, determining a number of raw bit errors for each page having a first uncorrectable error correction code failure, incrementing an error count value corresponding to each of the numbers of raw bit errors determined, and repeating the generating, reading, determining, and incrementing steps for a predetermined range of values of a predetermined reliability statistic of the memory blocks.. . ... Seagate Technology Llc

10/27/16 / #20160314815

Data storage component testing system

A testing system that is capable of testing individual data storage components may have testing, loader, and exchange assemblies with the testing assembly having a plurality of test slots each having long and short axes. The loader assembly can be configured to transport and install a test deck or data storage device from the exchange assembly to a test slot of the plurality of test slots with a long axis of the test deck continuously aligned with the long axis of the test slot while being transported.. ... Seagate Technology Llc

10/27/16 / #20160314813

Data storage component test deck system

A system may utilize at least an enclosed test deck that has an access port door covering an access port. The system can test a data storage component by presenting the enclosed test deck to an exchange assembly before exposing an interior test region of the test deck by engaging the access port door with a tool of the exchange assembly. ... Seagate Technology Llc

10/27/16 / #20160314810

Writer pole formation

Implementations disclosed herein provide a method of reducing the topography at the alignment and overlay marks area during the writer pole photolithography process in order to reduce the wafer scale variation and reduce the writer pole photolithography process rework rate. In one implementation, an intermediate stage of a wafer for writer pole formation is generated by removing a part of at least one metallic writer pole layer on top of an intermediate stage writer pole wafer to form a recovery trench, depositing an optically transparent material on top of the wafer, wherein the thickness of the optically transparent material is higher than a target recovery trench topography, forming a photoresist pattern on top of the optically transparent material over the recovery trench, etching the optically transparent material, and removing the photoresist pattern and at least part of the remaining optically transparent material.. ... Seagate Technology Llc

10/27/16 / #20160313771

Energy storage apparatus in device with conductive case structure

Technologies are described herein for implementing a space-efficient internal energy storage apparatus in a data storage device or other electronic device have a metallic or otherwise electrically-conductive housing or case structure. The energy storage apparatus comprises an interior surface of the metallic housing, a conductive layer disposed parallel to the interior surface of the metallic housing, and a separator disposed between the interior surface and the conductive layer. ... Seagate Technology Llc

10/20/16 / #20160308556

Systems and methods for differential message scaling in a decoding process

Systems and method relating generally to data processing, and more particularly to systems and methods for scaling messages in a data decoding circuit. In one embodiment, the systems and methods include applying a variable node algorithm, applying a check node algorithm, calculating a first number of errors, calculating a second number of errors, calculating a difference between the first and second number of errors, multiplying by scalar values to yield a scaled set of messages, and re-applying the variable node algorithm to the scaled set of messages.. ... Seagate Technology Llc

10/20/16 / #20160307595

Post-write scan operations for interlaced magnetic recording

A storage device includes a data degradation management module that tracks a risk of data degradation by incrementing a track write counter of a first data track responsive to each data write command to a second data track, such as a data track directly adjacent to the first data track. If a count of the track write counter exceeds a count threshold, one or more post-write scan operations are performed to assess and/or repair data degradation of the first data track.. ... Seagate Technology Llc

10/20/16 / #20160307590

Adaptive laser output control in a hamr device

A current temperature of a data storage device having a heat assisted recording (hamr) device is measured while in idle. A threshold laser diode power output of the hamr device is calculated at the current temperature when there is a change between a previous temperature and the current temperature. ... Seagate Technology Llc

10/20/16 / #20160306993

Location based disk drive access

Methods, apparatuses, systems, and devices are described for providing data security. In one method, data security is provided for a computing device having a data storage drive. ... Seagate Technology Llc

10/20/16 / #20160306753

Storage controller cache synchronization method and apparatus

A storage controller is provided. The storage controller includes a memory storing an indication of a current owner, a previous owner, and a preferred owner for each of one or more logical volumes. ... Seagate Technology Llc

10/20/16 / #20160306577

Map recycling acceleration

An apparatus includes a memory and a controller. The memory may be configured to store data. ... Seagate Technology Llc

10/13/16 / #20160300589

Near-field transducer with enlarged region, peg region, and heat sink region

A near-field transducer includes an enlarged region having a top side adjacent to a magnetic pole, a base side opposite the top side, and a circumference that extends from proximal to a media-facing surface to distal to a media-facing surface. The near-field transducer includes a peg region in contact with a region of the bas side of the enlarged region, the peg region extending from the enlarged region towards the media-facing surface. ... Seagate Technology Llc

10/06/16 / #20160293274

Storage device firmware and manufacturing software

Storage device firmware (fw) and manufacturing software techniques include access to fw images and communication of a manufacturing software tool. The manufacturing software tool enables download of the fw images into an i/o device and controlling a manufacturing test of the i/o device that is a storage device providing a storage capability. ... Seagate Technology Llc

10/06/16 / #20160293250

Charge loss compensation through augmentation of accumulated charge in a memory cell

Method and apparatus for managing data in a memory, such as a flash memory array. In accordance with some embodiments, a block of solid-state non-volatile memory cells are each programmed to an associated programmed state responsive to a respective amount of accumulated charge. ... Seagate Technology Llc

10/06/16 / #20160293205

Noise prediction detector adaptation in transformed space

Technologies are described herein for adapting channel parameters of a read channel in a transformed space. A set of channel parameter values associated with one or more components of the read channel is received. ... Seagate Technology Llc

10/06/16 / #20160293203

Disk surface defect detection

The present application provides a transducer head comprising a laser source configured to heat a target storage medium surface, and a thermal sensor configured to detect a defect on the target storage medium surface. The present application also provides a method comprising heating a target storage medium surface with an energy source configured in a transducer head to irradiate the target storage medium surface, and detecting a defect on the target storage medium surface using a thermal sensor configured in the transducer head. ... Seagate Technology Llc

10/06/16 / #20160293202

Apparatus with disc separator plates

Certain exemplary aspects of the present disclosure are directed towards an apparatus including a base deck, a plurality of storage mediums (e.g., discs) and a plurality of disc separator plates. The base deck includes a sidewall forming a cavity to house the storage medium, with slots in the sidewall in which each disc separator plate extends. ... Seagate Technology Llc

10/06/16 / #20160293190

Skewed shingled magnetic recording data reader

A data storage device may be configured with at least a transducing head separated from a data storage medium. The transducing head can have a data reader and data writer. ... Seagate Technology Llc

10/06/16 / #20160293189

Slot waveguide that couples energy to a near-field transducer

A dual-slot waveguide receives energy from a coupling waveguide. The dual-slot waveguide includes first and second light propagating regions of low-index material located side-by-side in a direction normal to a light propagation direction. ... Seagate Technology Llc

10/06/16 / #20160291644

Base deck with carrier features

A base deck of a storage drive forms a cavity that is designed to contain storage circuitry. The storage drive base deck is designed to mimic features of a storage drive carrier by providing: graspable portions located on a front face of the storage drive base deck; and insertion guide portions located on opposing sides of the storage drive base deck.. ... Seagate Technology Llc

10/06/16 / #20160290395

Fluid pumping capillary seal for a fluid dynamic bearing

An apparatus is provided including a shaft, wherein the shaft is stationary. A rotatable component is configured to rotate with respect to the shaft. ... Seagate Technology Llc

09/29/16 / #20160284373

Enlarged substrate for magnetic recording medium

A hard disc drive (hdd) with an enlarged magnetic recording disc. In some embodiments, a base deck and top cover are arranged to provide an hdd housing with a 2½ inch form factor or a 3½ inch form factor. ... Seagate Technology Llc

09/29/16 / #20160284372

Bolometer for internal laser power monitoring in heat-assisted magnetic recording device

An apparatus comprises a slider having an air-bearing surface (abs), a write pole at or near the abs, and a reader at or near the abs and connected to a pair of reader bond pads of the slider. A near-field transducer (nft) is formed on the slider at or near the abs, and an optical waveguide is formed in the slider and configured to receive light from a laser source. ... Seagate Technology Llc

09/29/16 / #20160284365

Devices including at least one multilayer adhesion layer

Devices that include a near field transducer (nft), the nft having at least one external surface; and at least one multilayer adhesion layer positioned on at least a portion of the at least one external surface, the multilayer adhesion layer including a first layer and a second layer, with the second layer being in contact with the portion of the at least one external surface of the nft, the first layer including: yttrium (y), scandium (sc), zirconium (zr), hafnium (hf), silicon (si), boron (b), tantalum (ta), barium (ba), aluminum (al), titanium (ti), niobium (nb), calcium (ca), beryllium (be), strontium (sr), magnesium (mg), lithium (li), or combinations thereof; and the second layer including: lanthanum (la), boron (b), lutetium (lu), aluminum (al), deuterium (d), cerium (ce), uranium (u), praseodymium (pr), yttrium (y), silicon (si), iridium (ir), carbon (c), thorium (th), scandium (sc), titanium (ti), vanadium (v), phosphorus (p), barium (ba), europium (eu), or combinations thereof.. . ... Seagate Technology Llc

09/29/16 / #20160283115

Dynamic granule-based intermediate storage

A data storage system includes data storage and random access memory. A sorting module is communicatively coupled to the random access memory and sorts data blocks of write data received in the random access memory of the data storage. ... Seagate Technology Llc

09/22/16 / #20160275979

Devices including a difussion barrier layer

Devices having an air bearing surface (abs), the devices including a write pole; a near field transducer (nft) that includes a peg and a disc, wherein the peg is at the abs of the device; a heat sink positioned adjacent the disc of the nft; a dielectric gap positioned adjacent the peg of the nft at the abs of the device; and a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 135°.. . ... Seagate Technology Llc

09/22/16 / #20160275978

Method and apparatus to detect and mitigate contamination between a read/write head and a recording medium

A first adaptive fly height measurement is performed between a read/write head and a recording medium during a stage of qualification testing of a magnetic disk drive. A second adaptive fly height measurement of the read/write head is performed during a subsequent stage of the qualification testing. ... Seagate Technology Llc

09/22/16 / #20160275974

Devices including an overcoat layer

Devices having an air bearing surface (abs), the devices include a write pole; a near field transducer (nft) including a peg and a disc, wherein the peg is at the abs of the device; an overcoat, the overcoat including a low surface energy layer.. . ... Seagate Technology Llc

09/22/16 / #20160275973

Devices including an overcoat that includes a low thermal conductivity layer

Devices having an air bearing surface (abs), the device including a write pole; a near field transducer (nft) that includes a peg and a disc, wherein the peg is at the abs of the device; an overcoat that includes a low thermal conductivity layer, the low thermal conductivity layer including a material that has a thermal conductivity of not greater than 5 w/mk.. . ... Seagate Technology Llc

09/22/16 / #20160275972

Devices including metal layer

Devices having an air bearing surface (abs) and including a write pole; a near field transducer (nft) that includes a peg and a disc, wherein the peg includes a rear peg portion and a peg tip, the rear peg portion and the peg tip are different materials and the peg tip includes: one or more metals; one or more nanoparticles comprising oxides, nitrides, carbides or combinations thereof; one or more conducting oxides, conducting nitrides, conducting bromides, conducting carbides, or combinations thereof; one or more semiconductors; or combinations thereof.. . ... Seagate Technology Llc

09/22/16 / #20160275969

Devices including metal layer

Devices having an air bearing surface (abs), the devices include a write pole; a near field transducer (nft) including a peg and a disc, wherein the peg is at the abs of the device; an overcoat, the overcoat including a low surface energy layer.. . ... Seagate Technology Llc

09/22/16 / #20160274037

Distinguishing foreign surface features from native surface features

Provided herein is an apparatus, including a photon emitter configured for sequentially emitting a first set of photons and a second set of photons onto a surface of an article. In addition, a photon detector array is configured to focus the first set of photons scattered from surface features of the article in a first focal plane. ... Seagate Technology Llc

09/22/16 / #20160273940

Spindle force actuator

An apparatus includes a circuit, a code modulator, and an actuator. The circuit is operable to detect displacements of a rotating object while in motion. ... Seagate Technology Llc

09/15/16 / #20160267931

Disk drive sensor selection

Implementations described and claimed herein includes a method comprising selecting a zone of one or more tracks on a disk drive having a plurality of magnetic sensors on a transducer head, determining a performance matrix related to the selected track zone, and selecting a first subset and a second subset of the plurality of magnetic sensors based on the determined performance matrix, wherein only the first subset of the plurality of magnetic sensors are used for data recovery in the selected track zone, and the second subset of the plurality of magnetic sensors are used for servo recovery.. . ... Seagate Technology Llc

09/15/16 / #20160267930

Defining a maximum sequential write duration for a data storage device utilizing heat-assisted recording

A maximum write duration is determined for first and second heat-assisted write transducers of a data storage device. Exceeding the duration results in thermal degradation of the first and second write transducers. ... Seagate Technology Llc

09/15/16 / #20160266962

Proactive cloud orchestration

Methods, systems, and devices are described for providing proactive cloud orchestration services for a cloud hardware infrastructure. A health management system may monitor component(s) of the cloud hardware infrastructure. ... Seagate Technology Llc

09/15/16 / #20160266493

Apparatuses and methods utilizing etch stop layers

Provided herein is an apparatus, including a substrate; an etch stop layer overlying the substrate, wherein the etch stop layer is substantially resistant to etching conditions; and a patterned layer overlying the etch stop layer, wherein the patterned layer is substantially labile to the etching conditions, and wherein the patterned layer comprises a number of features including substantially consistent feature profiles among regions of high feature density and regions of low feature density.. . ... Seagate Technology Llc

09/15/16 / #20160265593

Bearing apparatus with surface migration channels

Aspects of the present disclosure are directed to bearings, their manufacture and implementation. As may be implemented in accordance with one or more embodiments, an apparatus includes a bearing cage with a plurality of ball pockets at respective locations along a length of the bearing cage. ... Seagate Technology Llc

09/15/16 / #20160265119

Apparatuses and methods utilizing etch stop layers

Provided herein is an apparatus, including a substrate; an etch stop layer overlying the substrate, wherein the etch stop layer is substantially resistant to etching conditions; and a patterned layer overlying the etch stop layer, wherein the patterned layer is substantially labile to the etching conditions, and wherein the patterned layer comprises a number of features including substantially consistent feature profiles among regions of high feature density and regions of low feature density.. . ... Seagate Technology Llc

09/08/16 / #20160260457

Flexible virtual defect padding

Technologies are described herein for performing flexible virtual defect padding of bad sectors on recording media of a storage device. A defective sector on a data track of a recording medium in the storage device is detected. ... Seagate Technology Llc

09/08/16 / #20160260456

Shingled magnetic recording data store

Implementations disclosed herein provide a method comprising storing data in a two level key-value data store in an smr storage device, wherein a first level of the data store comprises a journal of incoming host operations and a second level of the data store comprises a plurality of ordered data stores, ordered based on a predetermined ordering criterion.. . ... Seagate Technology Llc

09/08/16 / #20160260448

Devices including near field transducer and adhesion layer

A device including a near field transducer (nft); a write pole; at least one dielectric material positioned between the nft and the write pole; and an adhesion layer positioned between the nft and the at least one dielectric material.. . ... Seagate Technology Llc

09/08/16 / #20160260446

Channel apparatus for transmitting multiple differential signals

Transmission signals may generated based on three differential signals and transmitted along a channel. Each of the plurality of transmission signals may include a signal representative of each of the three differential signals. ... Seagate Technology Llc

09/01/16 / #20160255063

In situ device authentication and diagnostic repair in a host environment

Apparatus and method for in situ authentication and diagnostic repair of a data storage device in a multi-device user environment. In accordance with some embodiments, the method includes detecting an error condition associated with a selected data storage device in the multi-device user environment. ... Seagate Technology Llc

09/01/16 / #20160254020

Adaptive hamr power data storage device

A data storage device may be configured with at least a heat assisted magnetic recording head that has a laser and is connected to a controller. The heat assisted magnetic recording head can be positioned proximal first and second data bits stored on an adjacent data storage medium. ... Seagate Technology Llc

09/01/16 / #20160254012

Data reader with resonant tunneling

A data reader may have an resonant tunnel structure disposed between first and second magnetic structures. The resonant tunnel structure can be configured with a spacer layer disposed between first and second barrier layers. ... Seagate Technology Llc

09/01/16 / #20160254011

Data writer front shield with varying throat height

A data storage device employing a data writer may configure the data writer with at least a write pole that is separated from a front shield on an air bearing surface. The front shield can be arranged to continuously extend from the air bearing surface a first throat height distal the write pole and a second throat height proximal the write pole with the first and second throat heights being different.. ... Seagate Technology Llc

09/01/16 / #20160253108

Multi-device storage with consolidated channel and control circuitry

Apparatus and method for managing data in a multi-device data storage system. In some embodiments, a plurality of data storage devices are provided, each data storage device having a local driver circuit adapted to transfer data with a local memory module. ... Seagate Technology Llc

08/25/16 / #20160247532

Storage medium vacuum sputter tool adjustable idler

A coating apparatus for magnetic data storage disks is operable to transport a disk in a disk holding fixture from a first coating area to a second coating area via roller wheels along a first path. A wheel located along the first path between the first coating area and the second coating area within a sealed enclosure is adjusted such that deflection of the disk holding fixture when traversing the disk transport wheel is reduced, such as by adjusting a leadscrew coupled to the disk holding fixture and a frame of the disk coating apparatus. ... Seagate Technology Llc

08/25/16 / #20160247528

Laser diode submount/slider interface with reduced thermal resistance

An apparatus comprises a slider of a magnetic recording head, a submount, and an interface defined between the slider and the submount. A laser diode is connected to the submount. ... Seagate Technology Llc

08/25/16 / #20160247527

Laser diode unit with enhanced thermal conduction to slider

An apparatus comprises a slider having a trailing edge and a leading edge. A laser diode unit comprises a submount and a laser diode mounted to the submount. ... Seagate Technology Llc

08/25/16 / #20160247525

Mode conversion via tapered waveguide

An apparatus includes a write head comprising a near-field transducer at a media-facing surface of the write head and a waveguide extending along a light-propagation direction. The waveguide is configured to receive light emitted from a light source at a fundamental transverse electric mode. ... Seagate Technology Llc

08/25/16 / #20160247080

Storage device with configurable neural networks

An apparatus comprises a mass storage unit and a plurality of circuit modules including a machine learning module, a programmable state machine module, and input/output interfaces. Switching circuitry is configured to selectively couple the circuit modules. ... Seagate Technology Llc

08/25/16 / #20160246674

Flash channel with selective decoder likelihood dampening

An apparatus for reading a flash memory includes a read controller operable to read the flash memory to yield read patterns, a likelihood generator operable to map the read patterns to likelihood values, a decoder operable to decode the likelihood values, a data state storage operable to retrieve the likelihood values for which decoding failed, and a selective dampening controller operable to select at least one dampening candidate from among the likelihood values for which decoding failed, to dampen the likelihood values of the at least one dampening candidate to yield dampened likelihood values, and to provide the dampened likelihood values to the decoder for decoding.. . ... Seagate Technology Llc

08/25/16 / #20160246345

Device with power control feature involving backup power reservoir circuit

Power-backup capabilities are provided by implementing a variety of different methods, systems and devices. According to one such implementation, an energy storage device such as a capacitive storage circuit is powered relative to the powering of one or more additional circuits from a common power supply to limit the draw upon the power supply. ... Seagate Technology Llc

08/25/16 / #20160246183

Transmission balancing for phase shift mask with a trim mask

Implementations described and claimed herein include photolithography technology to alleviate the imbalance of transmission intensity induced. In one implementation, a method comprises exposing an alternating phase shift mask (alt-psm) and a trim mask, wherein an exposure placement of the trim mask is shifted relative to an exposure placement of the alt-psm.. ... Seagate Technology Llc

08/18/16 / #20160240236

Modular magnetoresistive memory

A magnetoresistive memory element is provided with a read module having a first pinned layer with a magnetoresistance that is readable by a read current received from an external circuit. A write module has a nanocontact that receives a write current from the external circuit and, in turn, imparts a spin torque to a free layer that functions as a shared storage layer for both the read module and the write module.. ... Seagate Technology Llc

08/18/16 / #20160240216

Optimized recording condition for heat-assisted magnetic recording

An apparatus comprises a controller configured to apply a writing configuration (wc) to a heat-assisted magnetic recording head to write data to a recording medium. The recording medium includes a plurality of sectors. ... Seagate Technology Llc

08/18/16 / #20160239666

Non-deterministic encryption

A non-deterministic encryption functionality receives and encrypts an open-text input stream. Codes for error-correction are generated for the encrypted stream, and a correctable amount of non-deterministic random error is overlaid onto the encrypted stream and the codes for error-correction. ... Seagate Technology Llc

08/18/16 / #20160239411

Techniques for controlling recycling of blocks of memory

The present disclosure relates to examples of controlling recycling of blocks of memory. In one example implementation according to aspects of the present disclosure, a method comprises determining whether to reclaim one or more blocks of a memory. ... Seagate Technology Llc

08/18/16 / #20160239395

Intelligent failure prediction and redundancy management in a data storage system

Methods, apparatuses, systems, and devices are described for redundancy management for a storage system including a plurality of storage devices. Approaches for redundancy management may involve storage device failure prediction techniques and/or a redundancy value associated with a data file. ... Seagate Technology Llc

08/18/16 / #20160239361

Data storage system durability using hardware failure risk indicators

Methods, apparatuses, systems, and devices are described for improving data durability in a data storage system. In one example method of improving data durability, a hardware failure risk indicator may be determined for each of a plurality of data storage elements in the data storage system. ... Seagate Technology Llc

08/11/16 / #20160232946

Self-assembled monolayer coating for disc drive manufacture

A method of making a disc drive assembly comprising a plurality of components, the method comprising providing a self-assembled monolayer coating on at least one piece of process equipment that contacts at least one of the plurality of components. The self-assembled monolayer coating is not present in the assembled disc drive assembly.. ... Seagate Technology Llc

08/11/16 / #20160232931

Concurrent modulation and frictional heating head disk contact detection

An apparatus comprises a heat-assisted magnetic recording (hamr) head, a sensor, and a controller. The hamr head is configured to interact with a magnetic storage medium. ... Seagate Technology Llc

08/11/16 / #20160232930

Heat-assisted magnetic recording head-disk clearance setting

A magnetic recording head comprises a transducer, a heater, a writer and a laser. The transducer is configured to write to a magnetic recording medium during a write operation. ... Seagate Technology Llc

08/04/16 / #20160224099

System on chip power management

An implementation of a system disclosed herein provides an apparatus, comprising a system on chip, wherein the system on chip is configured to receive a sleep command from a host and in response to the sleep command, calculate a primary checksum of a block of data from a low latency memory such as a tightly coupled memory (tcm), copy the primary checksum and the block of data into a volatile storage media, preserve interface variables of the system on chip in the volatile storage media, operate the volatile storage media in a self-refresh mode, and shut down power to other components on the system on chip.. . ... Seagate Technology Llc

08/04/16 / #20160224096

Mobile data storage device with power management

A data storage system (100) may be configured with at least a mobile data storage device (102) that consists of a rotating data storage medium and a controller (122). The controller (122) can alter a rotational speed of the data storage medium in response to a predicted change in a command queue. ... Seagate Technology Llc

08/04/16 / #20160224011

Mobile data storage device with temperature management

A mobile data storage device (102) may be housed in a mobile computing device (142) without an active cooling feature. The mobile data storage device (102) can have at least a controller (122) configured to delay command execution in response to a predicted mobile data storage device (102) temperature. ... Seagate Technology Llc

07/28/16 / #20160218587

Component configured to stiffen an electric motor assembly

An apparatus includes a first component and a second component. The second component is located at a first position. ... Seagate Technology Llc

07/28/16 / #20160217821

Bimodal modulation

An apparatus and associated method contemplating a head gimbal assembly (hga) and a bridge circuit including first and second microactuators attached to the hga. Computation logic is connected to the bridge circuit and configured to independently measure an electrical output of each microactuator and to sum the electrical outputs to derive a value related to a vertically dominant modulation mode of the hga.. ... Seagate Technology Llc

07/28/16 / #20160217812

Methods of forming portions of near field transducers (nfts) and articles formed thereby

Methods that include forming at least a portion of a near field transducer (nft) structure; depositing a material onto at least one surface of the portion of the nft to form a metal containing layer; and subjecting the metal containing layer to conditions that cause diffusion of at least a portion of the material into the at least one surface of the portion of the nft; and devices formed thereby.. . ... Seagate Technology Llc

07/28/16 / #20160216043

Switchably activated heat transfer with magnetic fluid

An apparatus includes a heat pipe with a fluid path. A first part of the fluid path is thermally coupled to a first region of a higher temperature and a second part of the fluid path thermally is coupled to a second region of a lower temperature. ... Seagate Technology Llc

07/21/16 / #20160210991

Articles including a near field transducer and at least one waveguide

Systems that include an energy source configured to provide transverse electric (te) mode energy; a channel waveguide configured to receive energy from the energy source, the channel waveguide having at least one mirror plane; and a near field transducer (nft) configured to receive energy from the channel waveguide, the nft having at least one mirror plane.. . ... Seagate Technology Llc

07/21/16 / #20160210989

Methods of forming materials for at least a portion of a nft and nfts formed using the same

A method including depositing a plasmonic material at a temperature of at least 150° c.; and forming at least a peg of a near field transducer (nft) from the deposited plasmonic material.. . ... Seagate Technology Llc

07/21/16 / #20160208378

Methods of forming layers

A method of forming a layer, the method including providing a substrate having at least one surface adapted for forming a layer thereon; directing a particle beam towards the surface of the substrate, the particle beam including particles, wherein the particle beam has an angle of incidence with respect to the substrate, and is configured so that the particles have implant energies that are not greater than about 100 ev; changing the angle of incidence of the particle beam, the implant energy of the particles, or a combination thereof; and directing the particle beam towards the surface of the substrate a subsequent time, wherein the particles of the particle beam form a layer on the substrate.. . ... Seagate Technology Llc

07/14/16 / #20160203956

Etching source installable in a storage medium processing tool

A plasma etching source installable into at least one of multiple compartments of a sputter deposition tool. The plasma etching source includes a first mounting plate and at least one electrode plate coupled to the first mounting plate. ... Seagate Technology Llc

07/07/16 / #20160196840

Magnetic element with reduced shield-to-shield spacing

A magnetic stack is disclosed. The magnetic stack includes a magnetically responsive lamination that includes a ferromagnetic free layer, a synthetic antiferromagnetic (saf) structure, and a spacer layer positioned between the ferromagnetic free layer and the saf structure. ... Seagate Technology Llc

07/07/16 / #20160195381

Positioning goniometry

An apparatus and associated method contemplating a goniometer stage having a base, and a roller bearing having a first annular race supported by the base and a concentric second annular race. A rotor plate is configured to support a workpiece, and defines a bearing surface contacting the second annular race throughout a selective movement of the rotor plate with respect to the base along an arc defining an axis of rotation that is spaced apart from the rotor plate.. ... Seagate Technology Llc

06/16/16 / #20160172008

Dissipating heat during device operation

Apparatus for dissipating heat during the operation of a device. In accordance with some embodiments, the apparatus compares spaced-apart first and second heat sources. ... Seagate Technology Llc

06/16/16 / #20160171996

Position error signal compensation to prevent adjacent track erasure

Technologies are described herein for preventing adjacent track erasure in a storage device using position error signal compensation from a previously written track in a storage device. A first data track is written to a recording medium in the storage device while position error signal information regarding deviations of a read/write head from an ideal center of the first data track are recorded. ... Seagate Technology Llc

06/16/16 / #20160171991

Attaching optical components using homogenized laser light

An attachable optical component is aligned with a base optical component. The attachable optical component has a mounting surface interfacing with the base optical component and an exposed surface opposed to the mounting surface. ... Seagate Technology Llc

06/16/16 / #20160169802

Classification of surface features using fluoresence

Provided herein is an apparatus, including a photon emitter configured to emit photons onto a surface of an article, a photon detector array configured to receive photons from surface features of the article; and a processing means configured for processing photon-detector-array signals corresponding to photons scattered from the surface features and photons fluoresced from the surface features, wherein the processing means is further configured for classifying the surface features of the article.. . ... Seagate Technology Llc

06/16/16 / #20160168723

Method of patterning a stack

The embodiments disclose a method of fabricating a stack, including replacing a metal layer of a stack imprint structure with an oxide layer, patterning the oxide layer stack using chemical etch processes to transfer the pattern image and cleaning etch residue from the stack imprint structure to substantially prevent contamination of the metal layers.. . ... Seagate Technology Llc

06/09/16 / #20160165743

Data storage enclosure with latch feature

A data storage enclosure may house at least two data storage devices and consist of a first electrical connector and a latch feature. The first electrical connector may be aligned with a second electrical connector of a data storage rack. ... Seagate Technology Llc

06/09/16 / #20160165737

Vibration isolation component for an enclosure

An enclosure may be secured to an enclosure frame by a fastener that continuously extends through a first aperture of the enclosure and a second aperture of an isolator. The isolator may contact the first aperture, enclosure frame, and fastener. ... Seagate Technology Llc

06/09/16 / #20160163521

Interchangeable magnet pack

An apparatus includes a target, wherein the target includes a nonuniform erosion profile. The apparatus also includes a number of interchangeable magnetic and non-magnetic inserts. ... Seagate Technology Llc

06/09/16 / #20160163517

Filament holder for hot cathode pecvd source

A chemical vapor deposition source that includes at least one plate to which first and second electrical connection posts are coupled. The chemical vapor deposition source also includes a filament having a first end and a second end. ... Seagate Technology Llc

06/09/16 / #20160163343

Apparatus and method for setting slider surface potential

An apparatus includes a slider body of a disk drive. The slider body is electrically coupled to a plurality of end bond pads. ... Seagate Technology Llc

06/09/16 / #20160163341

Angled waveguide

An apparatus has an input surface configured to receive energy emitted from an energy source in a first mode. A mode order converter is configured to convert the energy from the first mode to a second mode. ... Seagate Technology Llc

06/09/16 / #20160163337

Magnetic stack including cooling element

Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. ... Seagate Technology Llc

06/09/16 / #20160162208

Data reallocation upon detection of errors

A device includes one or more data storage media having a main storage area. The device also includes a non-volatile cache memory and a controller. ... Seagate Technology Llc

06/09/16 / #20160158972

Method of surface tension control to reduce trapped gas bubbles

The embodiments disclose a method of surface tension control to reduce trapped gas bubbles in an imprint including modifying chemistry aspects of interfacial surfaces of an imprint template and a substrate to modify surface tensions, differentiating the interfacial surface tensions to control interfacial flow rates of a pre-cured liquid resist and controlling pre-cured liquid resist interfacial flow rates to reduce trapping gas and prevent trapped gas bubble defects in cured imprinted resist.. . ... Seagate Technology Llc

06/02/16 / #20160155458

Sensor structure having layer with high magnetic moment

A reader sensor having a composite shield and a sensor stack. The composite shield includes a high magnetic moment layer having a magnetic moment greater than 1.0 t, a low magnetic moment layer, and a spacer therebetween. ... Seagate Technology Llc

06/02/16 / #20160154738

Tiered data storage system

A storage media comprising a first storage subset with a first value of a storage media characteristic and a second storage subset with a second value of the storage media characteristic, the first value of a storage media characteristic being substantially different than the second value of the storage media characteristic and a storage controller configured to allocate a plurality of logical block addresses (lbas) between the first storage subset and the second storage subset based on a predetermined criterion in view of the first value of the storage media characteristic and the second value of the storage media characteristic.. . ... Seagate Technology Llc

05/26/16 / #20160148652

Data storage device with wear level identification

A transducing head may be connected to a controller and positioned proximal a data storage medium. The controller can be connected to a wear level identification circuit and configured to identify a first data region of the data storage medium having a first wear level and a second data region of the data storage medium having a second wear level. ... Seagate Technology Llc

05/26/16 / #20160148647

Flexible virtual defect padding

Technologies are described herein for performing flexible virtual defect padding of bad sectors on recording media of a storage device. A defective sector on a data track of a recording medium in the storage device is detected. ... Seagate Technology Llc

05/26/16 / #20160148645

Reader design for interlaced magnetic recording

A storage device includes a multi-reader transducer head with a first reader and a second reader having an effective cross-track separation equal to a multiple of a defined track-pitch of a storage medium of the storage device. The effective cross-track separation may permit for a simultaneous data read of two non-adjacent data tracks.. ... Seagate Technology Llc

05/26/16 / #20160148644

Prioritized random access for magnetic recording

A storage device includes a controller that directs incoming data to a storage location based on a capacity of a region or surface of a magnetic disc. According to one implementation, the storage device controller writes new data to data tracks in a first series of data tracks on the magnetic disc until a capacity condition is satisfied. ... Seagate Technology Llc

05/26/16 / #20160148643

Variable written track widths for attribute-based storage

A storage device controller is configured to select one of multiple written track widths for a storage location based on a write attribute of data to be recorded at the storage location. According to one implementation, the storage device controller is further configured to select a power level for a heat-assisted magnetic recording (hamr) device based on the write attribute.. ... Seagate Technology Llc

05/26/16 / #20160148642

Interlaced magnetic recording

A storage device includes a transducer head including a first write element configured to write data at a first write width and a second write element configured to write data at a second write width less than the first write width. According to one implementation, the first write element writes data at a first linear density and to alternating data tracks and the second write element writes data at a second linear density and to data tracks interlaced with the alternating data tracks.. ... Seagate Technology Llc

05/26/16 / #20160148641

Interlaced magnetic recording in hamr devices

A storage device includes a controller that implements an interlaced magnetic recording scheme with prioritized random access. According to one implementation, a controller is configured to write data at a first linear density to alternating data tracks and write data at a second linear density to one or more data tracks interlaced with the alternating data tracks.. ... Seagate Technology Llc

05/26/16 / #20160148639

Screwless disc clamp

Provided herein is an apparatus that includes a radially extending through hole in an interperimeteral region and a radial channel extending from the through hole to an inner perimeter of an annulus. The radially extending through hole and the radial channel define a compliant flange operable to engage an annular groove. ... Seagate Technology Llc

05/26/16 / #20160148637

Laser power optimization for heat assisted interlaced magnetic recording

A storage device disclosed herein stores data on a storage media using interlaced magnetic recording (imr) and it includes a storage controller configured to determine power levels applied to the power source such that power levels applied to heat various tracks can be different from each other. An implementation of the storage device determines the track density, linear densities and power levels for even and odd tracks in imr hamr for the storage media.. ... Seagate Technology Llc

05/26/16 / #20160148636

Laser power optimization for heat assisted interlaced magnetic recording

A storage device disclosed herein stores data on a storage media using interlaced magnetic recording (imr) and it includes a storage controller configured to determine power levels applied to the power source such that power levels applied to heat various tracks can be different from each other. An implementation of the storage device determines the track density, linear densities and power levels for even and odd tracks in imr hamr for the storage media.. ... Seagate Technology Llc

05/26/16 / #20160148635

Heat assisted magnetic recording for bit-patterned media

A heat-assisted magnetic recording (hamr) device includes a controller that selects a power for operating a heat source for a data write to a target data track. According to one implementation, the controller selects the power based on an assessment of whether the target data track is bounded by any data-storing tracks. ... Seagate Technology Llc

05/26/16 / #20160148631

Slider with micro-patterned coating

A slider for a data recording device such as a disc drive. The slider has a pattern, which can be a micro-pattern, of sam material on the air-bearing surface (abs). ... Seagate Technology Llc

05/26/16 / #20160148630

Adjacent track interference asymmetry mitigation

A storage device includes a controller that selects an offset when preparing to write data to a target data track. The offset defines a position for a write head relative to a center of the target track and is selected based on a radial position of a write head at the target data track.. ... Seagate Technology Llc

05/26/16 / #20160148629

Dual writer head design

A storage device includes a transducer head with multiple write elements having write poles of different sizes. For example, the transducer head may include two write poles of different width configured to write to a same surface of a storage medium. ... Seagate Technology Llc

05/26/16 / #20160148626

Enhanced capacity recording

A storage device includes a storage controller configured to write a band of data tracks using a first recording method until criterion is met. The first method may be a conventional recording method. ... Seagate Technology Llc

05/26/16 / #20160148625

Interlaced magnetic recording super parity

A storage device includes a storage medium having a first set of non-adjacent data tracks having a number of super parity sectors and a second set of non-adjacent data tracks interlaced with the first set of non-adjacent data tracks. The number of super parity sectors on a data track of the first set of non-adjacent data tracks is selected based on a distance between the data track and an inner diameter of the storage medium.. ... Seagate Technology Llc

05/26/16 / #20160147701

Bridge for bus-powered peripheral device power management

Technologies are described herein for power management in a peripheral device. A bridge is coupled to a communication link that provides power. ... Seagate Technology Llc

05/26/16 / #20160147650

Non-sequential write for sequential read back

A storage device controller addresses consecutively-addressed portions of incoming data to consecutive data tracks on a storage medium and writes the consecutively-addressed portions to the consecutive data tracks in a non-consecutive track order. In one implementation, the storage device controller reads the data back from the consecutive data tracks in a consecutive address order in a single sequential read operation.. ... Seagate Technology Llc

05/26/16 / #20160147480

Data storage management in a memory device

The disclosure is related to systems and methods of managing data storage in a memory device. In a particular embodiment, a method is disclosed that includes receiving, in a data storage device, at least one data packet that has a size that is different from an allocated storage capacity of at least one physical destination location on a data storage medium in the data storage device for the at least one data packet. ... Seagate Technology Llc

05/19/16 / #20160140993

Thermal retention structure for a data device

A data device may have at least a magnetic lamination with a thermal retention structure deposited on a substrate and configured to maintain a predetermined temperature for a predetermined amount of time. Such predetermined temperature and amount of time may allow for the growth of a magnetic layer with a predetermined magnetic anisotropy.. ... Seagate Technology Llc

05/19/16 / #20160140334

Device functionality access control using unique device credentials

Apparatus and method for controlling access to protected functionality of a data storage device. In some embodiments, a plurality of identification (id) values associated with a data storage device are combined to form a combined id value. ... Seagate Technology Llc

05/19/16 / #20160139060

Surface feature manager

Provided herein is an apparatus, including a mapping means for generating a map of locations of surface features of an article based on photon-detector signals corresponding to photons scattered from the surface features of the article, and a surface feature manager. The surface manager is configured to locate a predetermined surface feature of the surface features of the article based, at least in part, on the map of the surface features locations, irradiate photons of a first power onto the location of the predetermined surface feature to analyze the predetermined surface feature, and irradiate photons of a second power onto the location of the predetermined surface feature to remove the predetermined surface feature.. ... Seagate Technology Llc

05/19/16 / #20160138154

Methods of forming layers

A method of forming a layer, the method including providing a substrate having at least one surface adapted for deposition thereon; and directing a particle beam towards the surface of the substrate, the particle beam including small molecule molecular species, wherein the small molecule molecular species break apart upon interaction with atoms at the substrate into atomic components, each of the atomic components having implant energies from about 20 ev to about 100 ev to form a layer.. . ... Seagate Technology Llc

05/12/16 / #20160133440

Methods of forming features

A method of forming a feature in a void, the method including filling the void having at least one sloped wall with a polymeric material; forming a layer of photoresist over the polymeric material; forming a gap in the layer of photoresist; and etching the polymeric material exposed by the gap in the layer of photoresist to form a feature.. . ... Seagate Technology Llc

05/12/16 / #20160133291

Near-field transducer with recessed region

A near-field transducer is situated at or proximate an air bearing surface of the apparatus and configured to facilitate heat-assisted magnetic recording on a medium. The near-field transducer includes an enlarged region comprising plasmonic material and having a first end proximate the air bearing surface. ... Seagate Technology Llc

05/12/16 / #20160133290

Write pole configuration

A write head having a write pole with a tip portion defining a pole tip and a paddle portion extending from the tip portion away from the pole tip, the paddle portion defining a back edge. The write head also has a coil structure having at least two active turns crossing the paddle portion, wherein a back of the coil structure is no more than 1 micrometer past the back edge of the write pole. ... Seagate Technology Llc

05/12/16 / #20160133288

Near field transducers (nfts) and methods of forming nfts

Devices having an air bearing surface (abs), the device including a near field transducer, the near field transducer having a peg and a disc, the peg having a region adjacent the abs, the peg including a plasmonic material selected from gold (au), silver (ag), copper (cu), ruthenium (ru), rhodium (rh), aluminum (al), or combinations thereof; and at least one other secondary atom selected from germanium (ge), tellurium (te), aluminum (al), antimony (sb), tin (sn), mercury (hg), indium (in), zinc (zn), iron (fe), copper (cu), manganese (mn), silver (ag), chromium (cr), cobalt (co), and combinations thereof, wherein a concentration of the secondary atom is higher at the region of the peg adjacent the abs than a concentration of the secondary atom throughout the bulk of the peg. Methods of forming nfts are also disclosed.. ... Seagate Technology Llc

05/12/16 / #20160133287

Waveguides including novel core materials

Waveguides that include a top cladding layer; a bottom cladding layer; and a core layer positioned between the top cladding layer and the bottom cladding layer, the core layer including a material having a refractive index of not less than 2.1, for example amorphous hydrogenated silicon carbide (sic:h), or bismuth titanate. Methods of forming core layers of waveguides are also disclosed.. ... Seagate Technology Llc

05/12/16 / #20160133286

Structure positioned between magnetic pole and near-field transducer

An apparatus includes a waveguide, a magnetic pole, and a near-field transducer. The near field transducer is positioned at or near a media-facing surface. ... Seagate Technology Llc

05/12/16 / #20160133285

Excitation of a near-field transducer using combined transverse electric and transverse magnetic modes

A method involves receiving light from a light source at a fundamental transverse electric (te00) mode or a fundamental transverse magnetic (tm00) mode. A waveguide polarization multiplexes the light to a combined mode that includes the tm00 mode and a first higher-order transverse electric (te10) mode. ... Seagate Technology Llc

05/12/16 / #20160133280

Devices including a diffusion barrier layer

Devices that include a write pole; a near field transducer (nft) that includes a peg and a disk, wherein the peg is at the abs of the device; and a diffusion barrier layer positioned between the write pole and the peg of the nft, the diffusion barrier layer including metals, nitrides, oxides, carbides, silicides, or amorphous material.. . ... Seagate Technology Llc

05/12/16 / #20160133279

Devices including a near field transducer (nft) with nanoparticles

Devices that include a near field transducer (nft) including a crystalline plasmonic material having crystal grains and grain boundaries; and nanoparticles disposed in the crystal grains, on the grain boundaries, or some combination thereof, wherein the nanoparticles are oxides of, lanthanum (la), barium (ba), strontium (sr), erbium (er), hafnium (hf), germanium (ge), or combinations thereof; nitrides of zirconium (zr), niobium (nb), or combinations thereof; or carbides of silicon (si), aluminum (al), boron (b), zirconium (zr), tungsten (w), titanium (ti), niobium (nb), or combinations thereof.. . ... Seagate Technology Llc

05/12/16 / #20160133278

Devices including a multilayer gas barrier layer

Devices that include a near field transducer (nft); a multilayer gas barrier layer positioned on at least a portion of the nft, the multilayer gas barrier layer including at least a first and a second sublayer, where the second gas barrier sublayer is positioned on the first gas barrier sublayer, the first gas barrier sublayer is positioned adjacent the nft and the second gas barrier sublayer is positioned adjacent the wear resistant layer, the first and second sublayers independently have thicknesses from 0.01 nm to 5 nm; and a wear resistance layer positioned on at least a portion of the gas barrier layer.. . ... Seagate Technology Llc

05/12/16 / #20160133277

Devices including an amorphous gas barrier layer

Devices that include a near field transducer (nft); an amorphous gas barrier layer positioned on at least a portion of the nft; and a wear resistance layer positioned on at least a portion of the gas barrier layer.. . ... Seagate Technology Llc

05/12/16 / #20160133275

Methods of forming near field transducers (nfts) and portions thereof

A method of forming a peg of a nft, the peg having a tapered portion, the method including depositing a layer of dielectric material; forming a three dimensional shape from at least a portion of the dielectric material the three dimensional shape having two side surfaces and two end surfaces; and depositing plasmonic material on at least one side surface of the three dimensional shape of dielectric material, wherein the plasmonic material deposited on the at least one side surface forms the tapered portion of the peg.. . ... Seagate Technology Llc

05/12/16 / #20160132699

Split-key arrangement in a multi-device storage enclosure

Apparatus and method for data security in a multi-device data storage enclosure. In some embodiments, the storage enclosure has a housing with opposing first and second ends. ... Seagate Technology Llc

05/12/16 / #20160132267

Storage network data allocation

A method of allocating data to a storage block included in a storage network may include determining a plurality of characteristics associated with a storage block included in a storage network. The plurality of characteristics may include storage capacity of the storage block, available storage space of the storage block, likelihood of loss of data stored on the storage block, availability of the storage block with respect to the storage network, and use of the storage block. ... Seagate Technology Llc

05/05/16 / #20160125901

Near-field transducer with multiple heat sinks

An apparatus comprises a writer, a near-field transducer (nft), a channel waveguide proximate the nft, a dielectric layer between the nft and waveguide, and a plurality of heat sinks. A first heat sink comprises a gap and contacts the nft and the writer. ... Seagate Technology Llc

05/05/16 / #20160124846

Adaptive spanning control

The disclosed technology provides for a solid state device that adaptively determines, responsive to receipt of a write command, whether or not to partition one or more individual logical blocks of data between multiple pages of a flash storage device. According to one implementation, the partitioning (e.g., spanning) determination is based on read frequency characteristics and the internal error correction code rate of the data.. ... Seagate Technology Llc

05/05/16 / #20160124808

Systems and methods for inter-cell interference mitigation in a flash memory

The present inventions are related to systems and methods for accessing data from a flash memory, and more particularly to systems and methods for inter-cell interference handling in a flash memory. The systems and methods may include a soft information correction circuit that is operable to receive soft information corresponding to information accessed from a block of memory cells, and modify the soft information based upon a variance of the soft information and a median of the soft information to create corrected soft information, the corrected soft information being used to mitigate inter-cell interference in the block of memory cells.. ... Seagate Technology Llc

05/05/16 / #20160124716

Deriving entropy from multiple sources having different trust levels

Apparatus and method for generating random numbers. In accordance with some embodiments, a first multi-bit string of entropy values is derived from a first entropy source having a first trust level and a different, second multi-bit string of entropy values is derived from a second entropy source having a different, second trust level. ... Seagate Technology Llc

05/05/16 / #20160124681

Tracking hot areas of disk drive

Methods, apparatuses, systems, and devices are described for determining use of areas of a disk drive. In one method, a score of an area node of the disk drive may be increased each time the area node is accessed during a time interval of a series of time intervals. ... Seagate Technology Llc

05/05/16 / #20160124299

Transmission balancing for phase shift mask with a trim mask

Implementations described and claimed herein include photolithography technology to alleviate the imbalance of transmission intensity induced. In one implementation, a method comprises exposing an alternating phase shift mask (alt-psm) and a trim mask, wherein an exposure placement of the trim mask is shifted relative to an exposure placement of the alt-psm.. ... Seagate Technology Llc

04/28/16 / #20160119146

Secure data shredding in an imperfect data storage device

Apparatus and method for secure data shredding in an imperfect data storage device. In some embodiments, a hash function is applied to multi-bit random sequence to generate an output hash. ... Seagate Technology Llc

04/28/16 / #20160118093

Multiple retry reads in a read channel of a memory

An apparatus having a circuit and a decoder is disclosed. The circuit is configured to adjust an initial one of a plurality of reference voltages in a read channel of a memory by shifting the initial reference voltage an amount toward a center of a window and read a codeword from the memory a number of times. ... Seagate Technology Llc

04/28/16 / #20160118075

Laser subassembly metallization for heat assisted magnetic recording

A heat assisted magnetic recording (hamr) assembly includes a slider, a laser diode and solder connections between the laser diode and the slider. The solder connections mechanically and electrically attach the laser diode to the slider. ... Seagate Technology Llc

04/28/16 / #20160118072

Enlarged substrate for magnetic recording medium

An enlarged substrate for a magnetic recording medium used in a data storage device such as a hard disc drive (hdd). In some embodiments, a data storage device has a housing member for a 3½ inch form factor storage device or a 2½ inch form factor storage device. ... Seagate Technology Llc

04/28/16 / #20160118070

Waveguide of a write head with reduced crosstrack width proximate a near-field transducer

A write head includes a near-field transducer near a media-facing surface of the write head and a waveguide. The waveguide includes a core that overlaps or is co-planer with the near-field transducer at a first region. ... Seagate Technology Llc

04/28/16 / #20160118069

Waveguide of a write head with reduced cross sectional area proximate a near-field transducer

A write head includes a near-field transducer near a media-facing surface of the write head. The write head includes a waveguide having a core with a first side disposed proximate to the near-field transducer. ... Seagate Technology Llc

04/28/16 / #20160118066

Sensor structure having increased thermal stability

A reader sensor having a dusting layer having a thickness less than 5 angstroms between and in contact with the afm layer and with the pinned layer. The dusting layer comprises a non-magnetic, electrically conducting material, such as ruthenium or iridium. ... Seagate Technology Llc

04/28/16 / #20160118064

Write head core

Implementations disclosed and claimed herein include a method of write head core located in a slider, the write head core comprising a first end operative to serve as a write pole, a second end operative to serve as a return pole, wherein the first end comprises a substantially smaller cross-sectional area than the second end, and wherein the write head core has a substantially smooth curvature.. . ... Seagate Technology Llc

04/28/16 / #20160117266

Selective management of security data

Security techniques may be selectively performed on data based on a classification of the data. One example technique includes receiving a memory access command specifying a target data block on a storage medium storing both security data and non-security data. ... Seagate Technology Llc

04/28/16 / #20160117121

Logical block addresses used for executing host commands

A logical block address space of a storage compute device is reserved for use in executing commands from a host. The logical block address space is not mapped to a physical address space. ... Seagate Technology Llc

04/07/16 / #20160099810

Key-value data storage device with hybrid architecture

A key-value storage device and method of using the same. In some embodiments, keys are stored in a key store in a first non-volatile memory and corresponding values associated with the keys are stored in a value store of a second non-volatile memory. ... Seagate Technology Llc

04/07/16 / #20160099020

Perpendicular recording media with enhanced anisotropy through energy assisted segregation

Apparatus for recording data and method for making the same. In accordance with some embodiments, a magnetic layer is supported by a substrate and comprises a magnetic magnetic material, a non-magnetic material, and an energy assisted segregation material. ... Seagate Technology Llc

04/07/16 / #20160099019

Writer pole formation

Implementations disclosed herein provide a method of reducing the topography at the alignment and overlay marks area during the writer pole photolithography process in order to reduce the wafer scale variation and reduce the writer pole photolithography process rework rate. In one implementation, an intermediate stage of a wafer for writer pole formation is generated by removing a part of at least one metallic writer pole layer on top of an intermediate stage writer pole wafer to form a recovery trench, depositing an optically transparent material on top of the wafer, wherein the thickness of the optically transparent material is higher than a target recovery trench topography, forming a photoresist pattern on top of the optically transparent material over the recovery trench, etching the optically transparent material, and removing the photoresist pattern and at least part of the remaining optically transparent material.. ... Seagate Technology Llc

04/07/16 / #20160099016

Magnetic stack including mgo-ti(on) interlayer

A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an mgo—ti(on) layer.. ... Seagate Technology Llc

04/07/16 / #20160098646

Dynamically modifying a boundary of a deep learning network

A connection between a user device and a network server is established. Via the connection, a deep learning network is formed for a processing task. ... Seagate Technology Llc

04/07/16 / #20160098431

Performing mathematical operations on changed versions of data objects via a storage compute device

A data object is received from a host and stored on a storage compute device. A first mathematical operation is performed on the data object via the storage compute device. ... Seagate Technology Llc

04/07/16 / #20160098352

Media cache cleaning

Implementations disclosed herein provide a method comprising detecting a power supply status, determining a media cache cleaning scheme based on the detected power supply status, and performing the determined cleaning scheme until a predetermined threshold is reached.. . ... Seagate Technology Llc

04/07/16 / #20160098318

Dynamic per-decoder control of log likelihood ratio and decoding parameters

An apparatus includes one or more error-correction decoders, a buffer, and at least one processor. The buffer may be configured to store data to be decoded by the one or more error-correction decoders. ... Seagate Technology Llc

04/07/16 / #20160098317

Write mapping to mitigate hard errors via soft-decision decoding

An apparatus having mapping and interface circuits. The mapping circuit (i) generates a coded item by mapping write unit bits using a modulation or recursion of past-seen bits, and (ii) calculates a particular state to program into a nonvolatile memory cell. ... Seagate Technology Llc

04/07/16 / #20160098217

Method and system for preserving data of a storage device

Various embodiments of a method and system for preserving data of a data storage device are disclosed. The method can include determining a number of times data is written to a target track of a storage medium; rewriting data from a track adjacent the target track if the number of times data is written to the target track exceeds a first predetermined threshold; determining a number of times data is rewritten to the adjacent track; copying data from the target track to a first storage location of a media cache if the number of times data is rewritten to the adjacent track exceeds a second predetermined threshold; writing subsequent data designated for the target track to the first storage location of the media cache; and relocating data from the first storage location of the media cache to the target track.. ... Seagate Technology Llc

04/07/16 / #20160097118

Inductively coupled plasma enhanced chemical vapor deposition

A deposition system may have at least a substrate mounted within a sealed chamber. A radio frequency energy can be supplied to an inductive source affixed to the sealed chamber with the inductive source having an inductive coil surrounding a tube. ... Seagate Technology Llc

03/31/16 / #20160095246

Multiple drive sled in a storage array

An apparatus as associated method contemplating a housing and a midplane supported by the housing having a midplane connector. A printed circuit board (pcb) having a pcb connector is selectively connectable to the midplane connector. ... Seagate Technology Llc

03/31/16 / #20160093396

Read retry for non-volatile memories

An apparatus for reading a non-volatile memory includes a tracking module operable to calculate means and variances of voltage level distributions in a non-volatile memory and to calculate at least one reference voltage to be used when reading the non-volatile memory based on the means and variances, a likelihood generator operable to calculate at least one other reference voltage to be used when reading the non-volatile memory, wherein the at least one other reference voltage is based at least in part on a predetermined likelihood value constellation, and to map read patterns from the non-volatile memory to likelihood values, and a read controller operable to read the non-volatile memory using the at least one reference voltage and the at least one other reference voltage to yield the read patterns.. . ... Seagate Technology Llc

03/31/16 / #20160093319

Magnetoresistive sensor with saf structure having amorphous alloy layer

A magnetoresistive (mr) sensor including a synthetic antiferromagnetic (saf) structure that is magnetically coupled to a side shield element. The saf structure includes at least one magnetic amorphous layer that is an alloy of a ferromagnetic material and a refractory material. ... Seagate Technology Llc

03/24/16 / #20160087402

Thermal management of laser diode mode hopping for heat assisted media recording

A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.. . ... Seagate Technology Llc

03/24/16 / #20160087401

Heat assisted media recording device with reduced likelihood of laser mode hopping

An apparatus includes a laser diode, a heater arrangement, and a circuit. The laser diode is configured to facilitate heat assisted magnetic recording during a lasing state. ... Seagate Technology Llc

03/24/16 / #20160086625

Circuit connection pad design for improved electrical robustness using conductive epoxy

Disk drives including head suspensions within dual stage actuation systems have improved electrical connectivity between electrical connection pads from flexible circuits as are applied to head suspension assemblies with piezoelectric microactuators as also provided to head suspension assemblies. A more robust electrical connection provides for better control of microactuator actuation for fine movements and positioning of magnetic read/write heads relative to disk data tracks as part of dual stage actuated suspension systems. ... Seagate Technology Llc

03/24/16 / #20160085623

Systems and methods for soft data utilization in a solid state memory system

Systems and methods relating generally to solid state memory, and more particularly to systems and methods for recovering data from a solid state memory. An example data processing system includes a first circuit operable to yield a modified soft data set from a data set accessed from a solid state memory device, and a second circuit operable to apply a data decoding algorithm to the modified soft data to yield a decoded output.. ... Seagate Technology Llc

03/24/16 / #20160085541

Management of device firmware update effects as seen by a host

Management of device firmware update effects as seen by a computing host enables continuously running an os on the host across a device firmware update, e.g., via delaying visibility of at least a portion of effects of the firmware update, such as in a context where without the delay in visibility the os would encounter m unrecoverable error and crash. For example, a device (e.g. ... Seagate Technology Llc

03/24/16 / #20160085291

Power management in a storage compute device

Computations are performed on data objects via two or more data storage sections. The data storage sections facilitate persistently storing the data objects in parallel read/write operations. ... Seagate Technology Llc

03/17/16 / #20160078945

Incremental step pulse programming

The disclosed technology provides enables incremental step pulse programming (ispp) operations with variable pulse step height control. In particular, a storage device is configured to select a pulse step height for an ispp operation of one or more memory cells of a storage device based on a write frequency of data programmed via the ispp operation. ... Seagate Technology Llc

03/17/16 / #20160078889

Sensor structure having layer with high magnetic moment

A reader sensor having a composite shield and a sensor stack. The composite shield includes a high magnetic moment layer having a magnetic moment greater than 1.0 t, a low magnetic moment layer, and a spacer therebetween. ... Seagate Technology Llc

03/17/16 / #20160078887

Main pole layer with at least two sacrificial layers and a gap layer

In accordance with one embodiment, a method may be implemented by depositing a non-magnetic gap layer of material above a main pole layer of magnetic material; depositing a sacrificial layer of material above the non-magnetic gap layer of material; etching a portion of the sacrificial layer of material while not entirely removing the sacrificial layer of material; and depositing additional sacrificial material to the etched sacrificial layer.. . ... Seagate Technology Llc

03/17/16 / #20160078045

Selective compression of objects in a storage compute device

Methods and apparatuses facilitate receiving a command via a host interface of a storage compute device to perform a computation on one or more data objects. The computations producing intermediate objects that are stored in data storage section of the storage compute device. ... Seagate Technology Llc

03/17/16 / #20160077978

Associating keys with data and compute objects in a storage compute device

A definition is received of at least one data object and a compute object from a host at a storage compute device. A first key is associated with the at least one data object and a second key is associated with the compute object. ... Seagate Technology Llc

03/17/16 / #20160077974

Adaptive control of write cache size in a storage device

Technologies are described herein for adaptively controlling the size of a write cache in a storage device based on the time required to flush the cache. Upon receiving a write command at a controller for the storage device, an estimated cache flush time for the write cache is calculated based on the write commands contained therein. ... Seagate Technology Llc

03/17/16 / #20160077885

Managing resource collisions in a storage compute device

A storage compute device includes a data storage section that facilitates persistently storing host data as data objects. The storage compute device also includes two or more compute sections that perform computations on the data objects. ... Seagate Technology Llc

03/17/16 / #20160077018

Surface features characterization

Provided herein is an apparatus, including two photon emitters and a photon detector array. The two photon emitters are configured to emit photons onto an entire surface of an article. ... Seagate Technology Llc

03/17/16 / #20160077009

Raman apparatus and methods

Provided herein is an apparatus, including an excitation arm including excitation optics; a collection arm including collection optics, wherein the excitation arm and the collection arm are geometrically off-axis from one another for independent control of the excitation optics or the collection optics; and a full-surface spectroscopic analyzer to analyze a thin-film over an article from raman-scattered light collected by the collection optics.. . ... Seagate Technology Llc

03/10/16 / #20160071535

Methods of manufacturing magnetic heads using a trigger reader electronic lapping guide

A method of manufacturing a magnetic read-write head, including the steps of presenting a row bar to a processing location, the row bar including an air bearing surface, at least one read-write head, at least one electronic lapping guide, and at least one trigger device, wherein each electronic lapping guide is positioned at a different distance from the air bearing surface than each trigger device, and wherein the read-write head and at least one of the trigger devices include a multi-layer stack of materials; lapping the air bearing surface while measuring the electrical resistance of at least one electronic lapping guide and at least one trigger device until the resistance measurement of the trigger device provides an open circuit reading, and measuring an offset resistance value of the at least one electronic lapping guide concurrently with the measurement of the open circuit reading by the trigger device.. . ... Seagate Technology Llc

03/10/16 / #20160070496

Scalable data structures for control and management of non-volatile storage

Method and apparatus for managing data in a non-volatile memory (nvd). In some embodiments, management information is stored in a buffer memory using a solid-state disk (ssd) controller circuit, the management information comprising a map data structure that associates storage addresses of a host device to physical addresses of the nvd. ... Seagate Technology Llc

03/10/16 / #20160069929

Calibration standard with pre-determined features

Provided herein in an apparatus, including a substrate; a functional layer, wherein the functional layer has a composition characteristic of a workpiece of an analytical apparatus; and pre-determined features configured to calibrate the analytical apparatus. Also provided herein is an apparatus, including a functional layer overlying a substrate; and pre-determined features for calibration of an analytical apparatus configured to measure the surface of a workpiece, wherein the functional layer has a composition similar to the workpiece. ... Seagate Technology Llc

03/10/16 / #20160069815

Apparatuses and methods for magnetic features of articles

Provided herein is an apparatus including a photon emitter configured to emit photons onto a surface of an article. In addition, the apparatus includes a photon detector array configured to receive photons scattered from surface features and magnetic features of the article. ... Seagate Technology Llc

03/10/16 / #20160069814

Article edge inspection

Provided herein is an apparatus, including a photon emitter and a photon detector array. The photon emitter is configured to emit photons onto an entire surface edge of an article. ... Seagate Technology Llc

03/10/16 / #20160069799

Reflective surfaces for surface features of an article

Provided herein is an apparatus including a photon emitter configured for reflecting photons from a surface of an article onto a first reflective surface. In addition, a second reflective surface is configured for reflecting photons from the surface of the article back onto the surface of the article. ... Seagate Technology Llc

03/03/16 / #20160064030

Shingled magnetic recording data store

Implementations disclosed herein provide a method comprising storing data in a two level key-value data store in an smr storage device, wherein a first level of the data store comprises a journal of incoming host operations and a second level of the data store comprises a plurality of ordered data stores, ordered based on a predetermined ordering criterion.. . ... Seagate Technology Llc

03/03/16 / #20160064029

Apparatus with first and second close points on media-facing surface of magnetic head

A magnetic head includes a read transducer and a write transducer at a media-facing surface of the magnetic head. The magnetic head includes at least one heater that causes heat deformation at the media-facing surface in response to different first and second energizing currents. ... Seagate Technology Llc

03/03/16 / #20160064022

Low power thermally assisted data recording media

In some embodiments, a thermally assisted data recording medium has a recording layer formed of iron (fe), platinum (pt) and a transition metal t selected from a group consisting of rhodium (rh), ruthenium (ru), osmium (os) and iridium (ir) to substitute for a portion of the pt content as feypty-xtx with y in the range of from about 20 at % to about 80 at % and x in the range of from about 0 at % to about 20 at %.. . ... Seagate Technology Llc

03/03/16 / #20160064019

Slider for magnetic recording apparatus with projection comprising optical turning element and methods of fabrication thereof

An apparatus includes a slider, a light source disposed upon an outer surface of the slider and a projection extending above the outer surface of the slider. The light source comprises a resonant cavity aligned with the outer surface of the slider. ... Seagate Technology Llc

03/03/16 / #20160064018

Write head with coil structure aligned with yoke

A write head having a main pole having a pole tip proximate an air bearing surface (abs), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the abs, and a helical coil wrapped around the main pole and the yoke. ... Seagate Technology Llc

03/03/16 / #20160064017

Data writer with flux density insert

A data writer may be generally configured at least with a write pole adjacent to and separated from a side shield and a trailing shield. The side shield may be formed of a first material and configured with a trailing box region that is at least partially filled with a flux density insert formed of a second material that is different than the first material.. ... Seagate Technology Llc

03/03/16 / #20160064015

High frequency data writer field generator device

A data writing device may be constructed and operated with at least a data writer that has at least a write pole and a magnetic feature. A controller may selectively activate the magnetic feature to magnetically oscillate and produce a radio frequency signal proximal the write pole on an air bearing surface (abs).. ... Seagate Technology Llc

03/03/16 / #20160062684

System, method, and computer program product for increasing spare space in memory to extend a lifetime of the memory

A method including increasing spare space in a storage subsystem including a flash memory, wherein the storage subsystem includes compressed data stored in the flash memory; extending a lifetime of the storage subsystem to achieve a stored selected minimum lifetime, based at least in part as a result of the increasing spare space; identifying at least one aspect associated with the lifetime of the storage subsystem; and delaying, based at least upon one identified aspect, at least one operation that reduces the lifetime of the storage subsystem, wherein the delaying at least one operation includes delaying a command that initiates the at least one operation.. . ... Seagate Technology Llc

03/03/16 / #20160059355

Ablation for feature recovery

When opaque films are deposited on semi-conductor wafers, underlying features may be concealed. In accordance with one implementation, such concealed features may be re-exposed via an ablation recovery process. ... Seagate Technology Llc

02/25/16 / #20160057886

Modular data storage system

A modular data storage system can consist of at least first and second enclosures spanning a single pair of rails. The first and second enclosures may each have keyed couplers that mate to align the first and second enclosures along a common plane while being suspended between the single pair of rails.. ... Seagate Technology Llc

02/25/16 / #20160055881

Adaptive hamr laser power data storage device

A data storage device and associated methods may provide at least a data storage medium that is separated from a heat assisted magnetic recording data writer and is connected to a controller. The controller can be configured to change a laser power of the heat assisted magnetic recording data writer in response to a tested bit error rate of a median data track of a plurality of adjacent data tracks reaching an identified threshold.. ... Seagate Technology Llc

02/25/16 / #20160055873

Apparatus including a perpendicular magnetic recording layer having a convex magnetic anisotropy profile

An apparatus may include a first magnetic layer, a first exchange break layer formed on the first magnetic layer, a second magnetic layer formed on the first exchange break layer, a second exchange break layer formed on the second magnetic layer, and a third magnetic layer formed on the second exchange break layer. The first magnetic layer has a first magnetic anisotropy energy, hk1, the second magnetic layer has a second magnetic anisotropy energy, hk2, and the third magnetic layer has a third magnetic anisotropy energy, hk3. ... Seagate Technology Llc

02/25/16 / #20160055340

Location based disk drive access

Methods, apparatuses, systems, and devices are described for providing data security. In one method, data security is provided for a computing device having a data storage drive. ... Seagate Technology Llc

02/25/16 / #20160055053

Methods and apparatuses utilizing check bit data generation

Certain exemplary aspects of the present disclosure are directed towards methods and apparatuses in which logic circuitry generates an error detection code based on user data received from a host, and further generates a first set of check bits, to be written to the non-volatile memory circuit in conjunction with the user data, by combining the error detection code with a hashed data address of the user data. In some embodiments, the check bits associated with the user data providing verification that the user data was written in the appropriate physical block address of the non-volatile memory circuit.. ... Seagate Technology Llc

02/25/16 / #20160054940

Combining data blocks in a non-volatile, solid-state memory

First and second data representation are stored in first and second blocks of a non-volatile, solid-state memory. The first and second blocks share series-connected bit lines. ... Seagate Technology Llc

02/18/16 / #20160049172

Energy transfer between data storage devices with moving parts

A system that includes a first data storage element actuated by a first electric motor. The system also includes a second data storage element actuated by a second electric motor. ... Seagate Technology Llc

02/18/16 / #20160049169

Servo parameterization for multi-sensor reader

A storage media includes a plurality of servo sectors with embedded servo patterns characterized by one or more servo pattern parameters. Each of the servo sectors has a servo pattern parameter based on a separation between read sensors of a transducer head reading the servo sector.. ... Seagate Technology Llc

02/18/16 / #20160049165

Integrated head for heat assisted magnetic recording

A magnetic recording apparatus includes a write element and an optical device for heating a portion of a magnetic medium. The optical device and the write element are arranged to generally prevent the write element from affecting the optical fields generated by the optical device.. ... Seagate Technology Llc

02/11/16 / #20160042176

Green drive with status indicator

Methods, systems, and devices are described for displaying information on a visual display of a data storage device. The device may be an internal data storage device and may display information associated with various operation parameters and a security confidence metric or states of the data storage device. ... Seagate Technology Llc

02/11/16 / #20160041874

Systems and methods for enhanced data recovery in a solid state memory system

Systems and method relating generally to data processing, and more particularly to systems and methods for accessing a data set from a solid state storage device, using a data decoding circuit to apply a data decoding algorithm to the data set to yield a decoded output, where the decoded output includes at least one error, identifying at least one critical location in the data set, and estimating a voltage associated with the data in the data set corresponding to the critical location.. . ... Seagate Technology Llc

02/11/16 / #20160041778

Managing data within a storage device based on file system metadata

Commands associated with one or more logical block addresses are received via a host interface of a storage device. Based on a timing and sequence of the commands, an extent of a file that contains the logical block addresses is determined, the file being stored on the storage device. ... Seagate Technology Llc

02/11/16 / #20160041768

Status indicator on a data storage device

Methods, systems, and devices are described for displaying information on a visual display of a data storage device. The device may be an internal data storage device and may display information associated with various operation parameters or states of the data storage device. ... Seagate Technology Llc

02/04/16 / #20160037687

Airfoil to provide directed cooling

An airfoil to provide directed cooling of active elements, such as in a multi-device storage enclosure. In accordance with some embodiments, an apparatus includes a housing having opposing first and second ends. ... Seagate Technology Llc

02/04/16 / #20160036789

Secure host authentication using symmetric key crytography

Methods of securely authenticating a host to a storage system are provided. A series of authentication sessions are illustratively performed. ... Seagate Technology Llc

02/04/16 / #20160035546

Helmholtz coil assisted pecvd carbon source

The embodiments disclose an apparatus including at least two carbon source deposition tools for emitting electrons, at least two reflective polarity rear button permanent magnets integrated into the carbon source deposition tools for reflecting emitted electrons, and at least two paired polarity helmholtz coils integrated into the carbon source deposition tools for forming uniform parallel magnetic field lines for confining the emitted electrons to uniformly deposit carbon onto the surfaces of a two-sided media disk.. . ... Seagate Technology Llc

02/04/16 / #20160035385

Contamination reduction head for media

A cleaning head and methods for removing contaminants from a data storage media, the cleaning head having a cleaning surface comprising a self-assembled monolayer, with the cleaning surface leading a read/write transducer. The self-assembled monolayer is selected to have a terminal functional group that has a high affinity to the contaminant(s) desired to be attracted and/or removed.. ... Seagate Technology Llc

02/04/16 / #20160035379

Devices including a gas barrier layer

Devices that include a near field transducer (nft); a gas barrier layer positioned on at least a portion of the nft; and a wear resistance layer positioned on at least a portion of the gas barrier layer wherein the gas barrier layer includes tantalum oxide (tao), titanium oxide (tio), chromium oxide (cro), silicon oxide (sio), aluminum oxide (alo), titanium oxide (tio), zirconium oxide (zro), yttrium oxide (yo), magnesium oxide (mgo), beryllium oxide (beo), niobium oxide (nbo), hafnium oxide (hfo), vanadium oxide (vo), strontium oxide (sro), or combinations thereof; silicon nitride (sin), aluminum nitride (al), boron nitride (bn), titanium nitride (tin), zirconium nitride (zrn), niobioum nitride (nbn), hafnium nitride (hfn), chromium nitride (crn), or combinations thereof silicon carbide (sic), titanium carbide (tic), zirconium carbide (zrc), niobioum carbide (nbc), chromium carbide (crc), vanadium carbide (vc), boron carbide (bc), or combinations thereof or combinations thereof.. . ... Seagate Technology Llc

02/04/16 / #20160035376

Data reader with tuned microstructure

A data reader may be configured with a tuned microstructure by initially cooling a substrate to a temperature of 100k or lower and subsequently depositing at least one layer of a data reader on the substrate while the substrate is maintained at the temperature. The tuned microstructure may consist of at least a grain size, grain size distribution, interface quality between multiple layers of the data reader, resistance-area product, and magnetoresistance.. ... Seagate Technology Llc

02/04/16 / #20160035375

Data storage device with phase lock spin-torque oscillation stabilization

A data storage device can be configured at least with a first spin-torque oscillator disposed between and contacting a write pole and a shield on an air bearing surface. A second spin-torque oscillator can be disposed between and contact the write pole and shield with the second spin-torque oscillator separated from the air bearing surface by a first stabilization distance and from the first spin-torque oscillator by a second stabilization distance. ... Seagate Technology Llc

02/04/16 / #20160035372

Reading narrow data tracks with multiple wide readers

Technologies are described herein for utilizing multiple, wide readers to read narrow data tracks on a magnetic recording media in a storage device. A system for reading a data track on a magnetic recording media comprises a plurality of reader elements, the width of each reader element being an integer greater than 1 multiple of a width of the data tracks on the recording media. ... Seagate Technology Llc

02/04/16 / #20160034342

Operational vibration compensation through media cache management

Apparatus and method for managing a media cache through the monitoring of operational vibration of a data storage device. In some embodiments, a non-volatile media cache of the data storage device is partitioned into at least first and second zones having different data recording characteristics. ... Seagate Technology Llc

01/28/16 / #20160027681

Hard-mask defined bit pattern substrate

Provided is an apparatus that includes a substrate; a first hard-mask pattern that includes a number of first features disposed over a top surface of the substrate; and a second hard-mask pattern disposed over the first hard-mask layer. The second hard-mask pattern includes a number of second features overlapping one or more of the first features.. ... Seagate Technology Llc

01/28/16 / #20160027456

Data storage device with phase lock spin-torque oscillation stabilization

A data storage device can be configured at least with a first spin-torque oscillator disposed between and contacting a write pole and a shield on an air bearing surface. A second spin-torque oscillator can be disposed between and contact the write pole and shield with the second spin-torque oscillator separated from the air bearing surface by a first stabilization distance and from the first spin-torque oscillator by a second stabilization distance. ... Seagate Technology Llc

01/28/16 / #20160026528

Techniques for providing data redundancy after reducing memory writes

The present disclosure relates to techniques for providing data redundancy after reducing memory writes. In one example implementation according to aspects of the present disclosure, a storage controller receives a storage command for providing data redundancy in accordance with a first data redundancy scheme. ... Seagate Technology Llc

01/28/16 / #20160025772

Atomic force microscopy of scanning and image processing

Apparatus and associated method that contemplates performing a first atomic force microscope (afm) scan of a first region of a sample centered at a first position at a first angle to produce a first scan image, the first afm scan including a first component scan at a first speed and a second component scan at a second speed; performing a second afm scan of the first region of the sample at a second angle to produce a second scan image, the second afm scan including performing a third component scan at the first speed and a fourth component scan at the second speed; and correcting a first error in the first scan image based on the second scan image to produce a corrected image output.. . ... Seagate Technology Llc

01/21/16 / #20160020192

Non-circular die package interconnect

A computing component may consist of a die package that has at least a board, first computing layer, and second computing layer. Dielectric layers can separate each of the board, first computing layer, and second computing layer. ... Seagate Technology Llc

01/21/16 / #20160019924

Sliders having at least two regions on the trailing edge surface

A slider that includes a leading edge surface; a trailing edge surface; and an air bearing surface (abs) positioned between the leading edge surface and the trailing edge surface, wherein the trailing edge surface includes a read-write element, at least one low surface energy region and at least one high surface energy region.. . ... Seagate Technology Llc

01/21/16 / #20160019923

Resistive temperature sensors for improved asperity, head-media spacing, and/or head-media contact detection

A sensor supported by a head transducer has a temperature coefficient of resistance (tcr) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. ... Seagate Technology Llc

01/21/16 / #20160019916

Unbalanced data writer coil

A data writer may be configured with at least a write pole and a continuous coil with the continuous coil having a first turn with a first cross-sectional shape and a second turn with a second cross-sectional shape that differs from the first cross-sectional shape. The second turn may be positioned proximal a leading edge of the write pole and an air bearing surface while the first turn is positioned distal the air bearing surface.. ... Seagate Technology Llc

01/21/16 / #20160019156

Disk cache allocation

Implementations disclosed herein provide a method comprising segregating a disk cache into a plurality of allocation units, and allocating the plurality of allocation units out-of-order.. . ... Seagate Technology Llc

01/21/16 / #20160018999

Storage system data hardening

The present disclosure relates to examples of data hardening. In one example according to aspects of the present disclosure, a method comprises receiving, at a storage device, power loss information in a first format associated with a first protocol. ... Seagate Technology Llc

01/14/16 / #20160013945

Attestation of data sanitization

Systems and methods are disclosed for performing data sanitization at a data storage device (dsd). In an embodiment, an apparatus may comprise a controller configured to receive a data sanitization command from a host, perform a data sanitization operation to securely erase data from a memory, produce an attestation including information related to the data sanitization operation, and sign the attestation to produce a signed attestation. ... Seagate Technology Llc

01/14/16 / #20160013944

Attestation of data sanitization

Systems and methods are disclosed for performing data sanitization at a data storage device (dsd). In an embodiment, a controller may direct a memory device to sanitize data by securely erasing the data, generate an attestation confirming that the data was successfully sanitized, and sign the attestation using an authentication key to create a signed attestation. ... Seagate Technology Llc

01/14/16 / #20160013615

Laser submounts formed using etching process

A wafer is formed having a plurality of laser-to-slider submount features on a first surface. An etching process is used to form scribe lines between the submounts on the first surface of the wafer. ... Seagate Technology Llc

01/14/16 / #20160012850

Binding shingled recording bands

Systems and methods are disclosed for binding shingled recording bands in data storage devices, particularly devices employing shingled magnetic recording. In one embodiment, an apparatus may comprise a controller configured to define boundaries of an area of a data storage medium based on a constraint and a list of defective sectors. ... Seagate Technology Llc

01/14/16 / #20160012849

Dynamic band boundaries

Systems and methods are disclosed for dynamic band boundaries in data storage devices, particularly devices employing shingled magnetic recording. Band boundaries may be modified to include spare sectors from guard areas between bands to achieve field defect-slipping. ... Seagate Technology Llc

01/14/16 / #20160012835

High flow packaging for slider cleaning

A tray system for containing multiple electronic components that includes a first tray having a planar member and a plurality of pockets recessed into an upper surface of the planar member, wherein each of the pockets includes: a bottom surface; an aperture extending through the bottom surface; a supply channel extending from a lower surface of the planar member to the aperture; a plurality of wall segments extending from the bottom surface of the pocket to the upper surface of the planar member and defining a perimeter of the pocket; and a plurality of pedestals extending from the bottom surface of the pocket toward the upper surface of the first tray.. . ... Seagate Technology Llc

01/14/16 / #20160011974

Techniques for controlling recycling of blocks of memory

The present disclosure relates to examples of controlling recycling of blocks of memory. In one example implementation according to aspects of the present disclosure, a method comprises determining whether to reclaim one or more blocks of a memory. ... Seagate Technology Llc

01/14/16 / #20160011966

Solid state memory command queue in hybrid device

Systems and methods are disclosed for improving performance in of storage device latency. In an embodiment, an apparatus may comprise a controller configured to receive a first data access command at a device including a nonvolatile solid state memory and a disc memory, and when the first data access command is directed to the nonvolatile solid state memory, store the first data access command to a first command queue for the nonvolatile solid state memory. ... Seagate Technology Llc

01/14/16 / #20160011965

Pass through storage devices

The disclosure is directed to apparatus and methods for implementing a pass through storage architecture that converts. Embodiments generally include a control circuit configured to allocate data among at least a first memory tier and a second memory tier. ... Seagate Technology Llc

01/14/16 / #20160011942

Electronic data store

An apparatus and method of providing conditional access to an electronic data store including a storage controller and a data storage resource. The method includes receiving, at the storage controller, a network request for access to the data storage resource from a client, the request including at least one required parameter defining the requested connection, obtaining information on the performance of the data storage resource, determining, based upon the information, whether a) the data storage resource can meet the or each required parameter of the request; and b) meeting the or each required parameter of the request will not violate any previously agreed parameters defining existing connections on the data storage resource; and denying the request if at least one of a) and b) are determined to be negative.. ... Seagate Technology Llc

01/14/16 / #20160011914

Distributed power delivery

Systems and methods are disclosed for distributed power delivery. In certain embodiments, an apparatus may comprise a device configured to control power to one or more power-consuming components via managing power usage among the one or more power-consuming components based on a priority of a task associated with the one or more power-consuming components. ... Seagate Technology Llc

01/14/16 / #20160011800

Techniques for reducing memory write operations using coalescing memory buffers and difference information

The present disclosure relates to examples of reducing memory write operations using coalescing memory buffers. In one example implementation according to aspects of the present disclosure, a method comprises computing a difference between a current state of data of at least one block of a storage device to which data is to be written and a state that would result from the write operation. ... Seagate Technology Llc

01/14/16 / #20160011783

Direct hinting for a memory device

A data storage area of a data storage device can be used to communicate information between the data storage device and an external device or software. In some examples, configuration data stored within the data storage area can be used to determine a subset of data to copy or move from a first data storage medium to a second data storage medium. ... Seagate Technology Llc

01/14/16 / #20160011777

Data storage device having a virtual machine

Apparatuses, systems, and methods for implementing a virtual machine on a data storage device are disclosed. In one embodiment, a device may comprise a communication interface responsive to a host, a processor, and a housing including the communication interface and the processor such that the device is removable from the host. ... Seagate Technology Llc

01/14/16 / #20160011640

Fast resume from hibernate

Apparatuses, systems, and methods for implementing fast resume from hibernate are disclosed. In one embodiment, an apparatus can include a data storage device having a circuit configured to determine a first memory location of hibernation data without receiving an indication of the first memory location from the host, and store the hibernation data to a second memory location of the dsd.. ... Seagate Technology Llc

01/07/16 / #20160005425

Leads coupled to top and bottom reader stacks of a reader

A reader includes top and bottom reader stacks that are offset relative to each other in a downtrack direction and disposed between a top shield and a bottom shield. Top side shields surround the top reader stack in a crosstrack direction, and bottom side shields surround the bottom reader stack in the crosstrack direction. ... Seagate Technology Llc

01/07/16 / #20160005424

Multi-stack reader with split middle shield

A reader includes top and bottom reader stacks disposed between a top and bottom shield. The top and bottom reader stacks are offset relative to each other in a downtrack direction. ... Seagate Technology Llc

01/07/16 / #20160004294

Device power control

In various embodiments and/or usage scenarios, device power control, such as relating to one or more power control commands, requests to transition operation to a specific power mode, and/or device power management commands, is advantageous and improves one or more of: performance, reliability, unit cost, and development cost of one or more devices, such as storage devices (e.g. A solid-state disk (ssd)) or systems including same.. ... Seagate Technology Llc

01/07/16 / #20160003894

Testing system with differing testing slots

A testing environment may have at least one controller connected to at least first and second testing slots positioned in a housing. The first testing slot can be configured with a first thermal range capability and the second testing slot may be configured with a second thermal range capability that differs from the first thermal range capability.. ... Seagate Technology Llc








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