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Hitachi Data Systems Engineering Uk Limited patents


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

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


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 Engineering Uk Limited

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 Engineering Uk Limited

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 Engineering Uk Limited

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 Engineering Uk Limited

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 Engineering Uk Limited

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 Engineering Uk Limited








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