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Hitachi Data Systems Corporation patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hitachi Data Systems Corporation-related inventors


Digital evidence management

In some examples, analysis metadata may be generated for received digital assets based on analysis of content of the digital assets. As one example, a service computing device may receive and store a digital asset and first metadata for the digital asset. ... Hitachi Data Systems Corporation

Storage control system managing file-level and block-level storage services, and methods for controlling such storage control system

A storage control system to provide file-level storage and block-level storage services. The storage control system has a computer system including a second 1/0 unit configured to receive block-level storage related requests, a processor unit, a first memory unit, and a storage unit; and a programmable logic device including a first 1/0 unit configured to receive file-level storage related requests, an interface unit configured to communicate with the computer system, one or more programmable hardware-implemented processing units and for processing of file-level storage related requests, and a second memory unit. ... Hitachi Data Systems Corporation

Computer program product, method, apparatus and data storage system for managing defragmentation in file systems

Aspects of managing defragmentation in a data storage system comprising one or more storage apparatuses and a file system server connected to the one or more storage apparatuses and to one or more host computers are described, comprising: providing free space allocation information; allocating, in response to receiving an update request to update data stored in one or more first storage units of a plurality of storage units, one or more second storage units of the plurality of storage units indicated to be free based on the provided free space allocation information for writing update data of the update request, controlling writing update data to the allocated one or more second storage units, and controlling swapping logical addresses associated with the one or more second storage units with respective logical addresses associated with the one or more first storage units.. . ... Hitachi Data Systems Corporation

Deduplication and garbage collection across logical databases

In some examples, a plurality of nodes may each host a respective logical database (ldb) that includes database data that references external resources stored in a storage system. Further, each node may maintain, for each external resource referenced by the respective ldb on that node, a reference count of a number of references in the respective ldb to each external resource and a timestamp associated with the reference count. ... Hitachi Data Systems Corporation

Method and an apparatus, and related computer-program products, for managing access request in multi-tenancy environments

The apparatus comprises a plurality of interfaces, each interface having an associated interface id; and a hardware-side processing device including at least one programmable hardware-implemented chip configured to process request packets, which are received from host computers and relate to access requests to one or more file system managed by the apparatus, and to generate response packets for the processed request packets; wherein, for a request packet which is received from a first host computer, at least one programmable hardware-implemented chip is configured to: determine the client id being associated with the first host computer, determine the interface id being associated with the first interface, determine whether the determined client id and interface id represent a permitted id set or a prohibited id set, and refrain from processing the received request packet if the determined client id and interface id represent a prohibited id set.. . ... Hitachi Data Systems Corporation

Content class for object storage indexing system

In some examples, a plurality of content properties may be used for managing indexing of object data, such as a plurality of files. Each content property may include an expression for extracting data values from specific data fields in the object data. ... Hitachi Data Systems Corporation

Content selection for storage tiering

A method, of managing storage of content of a system in storage units including run units which do not allow spin-down functionality and spin-down units which allow spin-down functionality, comprises: establishing a storage tiering rule which sets a policy indicating what content is eligible to be stored on a run unit and what content is eligible to be stored on a spin-down unit, the storage tiering rule being applicable to at least a group of the contents in the content system to determine stored content eligibility thereof for storage in the storage units and migration between the storage units; and identifying candidates of contents to migrate between the storage units, based on the storage tiering rule, state of the content system, and the stored content eligibility of the at least a group of the contents.. . ... Hitachi Data Systems Corporation

Elastic metadata and multiple tray allocation

In some examples, both object data and corresponding metadata are stored on thin provisioned block storage in which blocks for the storage of the object data and the metadata are dynamically provisioned from a shared pool. For instance, the metadata may be stored on the block storage using a tree data structure that may grow proportionally with the corresponding stored object data. ... Hitachi Data Systems Corporation

Systems and methods for highly-available file storage with fast online recovery

The storage system includes storage devices which have plural storage blocks. A first node with a first processor memory is configured to store first information which manages states of the storage blocks, and a second node including a second processor and memory is configured to store second information which manages the states of the storage blocks are included in the storage system to handle file operations. ... Hitachi Data Systems Corporation

A system and method for providing thin-provisioned block storage with multiple data protection classes

In some examples, a multi-node system may access physical storage divided into extents and further arranged into extent groups that may be allocated on demand as thin provisioned storage in response to write requests. Protection class instances are set with specified data protection capabilities. ... Hitachi Data Systems Corporation

Method and an apparatus, and related computer-program products, for managing access request to one or more file systems

The apparatus includes: a hardware-side processing section including one or more programmable hardware-implemented chips configured to process request packets, which are received from host computers and relate to access requests to one or more file systems managed by the apparatus, and to generate response packets for the processed request packets; and a software-side processing section including one or more cpus configured to execute decoding of requests packets sent from a host computer based on one or more computer programs stored in a memory of the software-side; wherein at least one programmable hardware-implemented chip of the hardware-side processing section is configured to process a credit request included in a received request packet, in particular without involvement of the hardware-side processing section.. . ... Hitachi Data Systems Corporation

Data management system with console module

A data management system that is enabled such that the user can select a data source node, a repository and a data path, choose policies for each and distribute the policies to be managed by the management system.. . ... Hitachi Data Systems Corporation

System for queue based object cloning

A file cloning process allows for quickly cloning files within a filesystem, such as when a user makes a copy of a directory containing files and subdirectories of files. A priority based main queue is filled by a depth first traversal of the directory to be copied with work items corresponding to files and subdirectories. ... Hitachi Data Systems Corporation

Data system for managing synchronized data protection operations at nodes of the data system, source node and destination node, and computer program product for use in such data system

The present application relates to a data system for managing synchronized data protection operations at plural nodes of the data system, the data system including at least a first node and a second node, wherein the first node is communicably connected to the second node and is configured to operate on the basis of first sequence information, the first node being configured to perform a first data protection operation and to transmit a synchronization notification to the second node on the basis of respective instructions included in the first sequence information, and wherein the second node is configured to receive the synchronization notification from the first node and to operate on the basis of second sequence information, the second node being configured to perform a second data protection operation upon receipt of the synchronization notification on the basis of a respective instruction included in the second sequence information.. . ... Hitachi Data Systems Corporation

01/19/17 / #20170017413

Computer program product, method, apparatus and data storage system for controlling write operations in the data storage system

The data storage system includes one or more storage apparatuses and a file system server connected to the one or more storage apparatuses and to one or more host computers. Write operations are controlled by providing a free space object which stores a plurality of indicators, each indicator being associated with one of a plurality of storage units for storing data units in the one or more storage apparatuses and each indicator indicating whether the associated storage unit is free or used, executing a read-ahead examination which comprises examining a set of indicators of the free space object for identifying one or more used storage units associated with indicators of the set, in particular for observing a fragmentation status of the storage units associated with the indicators of the set, and executing an allocation examination which comprises examining one or more indicators.. ... Hitachi Data Systems Corporation








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