| Patent application number | Description | Published |
|---|
| 20080270106 | EMULATED TAPE-BASED STORAGE MEDIA - A controller, system, method and computer program for emulating one or more tape-based storage devices using non-tape based physical data storage media. The controller is adapted to generate a data set for indicating an available capacity of the one or more emulated tape-based storage devices, the data set includes capacity data for indicating a respective available capacity of the one or more emulated tape-based storage devices based on an available capacity of the non-tape-based physical data storage media. The controller is also adapted to provide access to data stored on the non-tape based physical data storage medium using tape-based media command and the data set, and to dynamically update the capacity data of the data set in response to a change in the available capacity of the non-tape-based physical data storage media. | 10-30-2008 |
| 20090077309 | DATA TRANSFER - A virtual tape library including a module which is operable to issue input and output commands to a tape drive connected to the virtual tape library, wherein an input command is a command to write data to a tape connected to the tape drive and an output command is a command to read data from a tape connected to the tape drive. | 03-19-2009 |
| 20090113145 | DATA TRANSFER - An apparatus, for connection to a storage device, comprising: a module for communication with a software application and operable to receive instructions to copy data to the storage device; a chunking and identifier generation module operable to receive the data, to process the data into one or more chunks, to generate a first chunk identifier, representative of the identity of a first of the or each chunk of data and, upon processing of the data, to initiate the issuance of a confirmation signal to the software application indicating that the data has been copied to the storage device; and an interface for communication with the storage device, wherein the interface is operable to send the first chunk identifier to the storage device, and to send the first chunk of data to the storage device upon receipt of a transfer instruction from the storage device. | 04-30-2009 |
| 20100180074 | VIRTUAL TAPE LIBRARY - An embodiment of the invention relates to a virtual tape library apparatus providing a plurality of emulated tape storage elements. The apparatus comprises local, non-tape based storage, a store storing a data structure which associates the emulated tape storage elements with the local or a remote storage, a first interface to provide access to the local storage, in response to tape library commands identifying emulated tape storage elements associated with the local storage, a second interface to provide access to the remote storage, in response to tape library commands identifying emulated tape storage elements associated with the remote storage, and a command processor, which receives tape library commands relating to emulated storage elements, and generates respective commands for the remote storage when received library commands relate to the remote storage. | 07-15-2010 |
| 20100192050 | UPDATING SEQUENTIAL DATA - Disclosed is a storage apparatus comprising a data store; a data input; and a data processor arranged to: receive from the data input a block of data to be stored at an append point after sequential data comprising one or more stored blocks of data; retrieve an integrity measure, of one or more stored integrity measures that are associated with one or more respective points in the sequential data, said retrieved integrity measure being associated with a point at or preceding the append point; calculate a new integrity measure using the received block of data and the retrieved integrity measure; and store the received block of data and the new integrity measure in the data store, in addition to at least one stored integrity measure that is associated with a point in the data at or preceding the append point. | 07-29-2010 |
| 20110010498 | Providing preferred seed data for seeding a data deduplicating storage system - There is disclosed a computer system operable to process a plurality of logical storage unit manifests the manifests comprising respective pluralities of chunk identifiers identifying data chunks in a deduplicated data chunk store The computer system can determine at least one preferred manifest or preferred combination of manifests according to levels of duplication of the chunk identifiers within respective said manifests, and/or within respective combinations of said manifests. The computer system can provide preferred seed data corresponding to data chunks identified by the at least one preferred manifest or preferred combination of manifests. A method and computer readable medium are also disclosed. At least some embodiments facilitate timely and convenient transfer and storage of relevant data chunks to a receiving deduplicated data chunk store of a data storage system. | 01-13-2011 |
| 20110184908 | SELECTIVE DATA DEDUPLICATION - Data is selectively deduplicated such that portions of data suitable for deduplication are passed to a deduplication engine ( | 07-28-2011 |
| 20110184909 | METHOD AND APPARATUS FOR RANDOM ACCESS OF DATA STORED IN A SEQUENTIAL MANNER - Apparatus ( | 07-28-2011 |
| 20120079499 | LOAD BALANCING DATA ACCESS IN VIRTUALIZED STORAGE NODES - Systems and methods of load balancing data access in virtualized storage nodes are disclosed. An embodiment of a method includes receiving a data access request from a client for data on a plurality of the virtualized storage nodes. The method also includes connecting the client to one of the plurality of virtualized storage nodes having data for the data access request. The method also includes reconnecting the client to another one of the plurality of virtualized storage nodes to continue accessing data in the data access request. | 03-29-2012 |
| 20120137097 | COMMUNICATING CHUNKS BETWEEN DEVICES - An apparatus, for connection to a storage device, comprising: a module for communication with a software application and operable to receive instructions to copy data to the storage device; a chunking and identifier generation module operable to receive the data, to process the data into one or more chunks, to generate a first chunk identifier, representative of the identity of a first of the or each chunk of data and, upon processing of the data, to initiate the issuance of a confirmation signal to the software application indicating that the data has been copied to the storage device; and an interface for communication with the storage device, wherein the interface is operable to send the first chunk identifier to the storage device, and to send the first chunk of data to the storage device upon receipt of a transfer instruction from the storage device. | 05-31-2012 |
| 20140164851 | Fault Processing in a System - A status indication regarding operation of a first subsystem is provided. A fault of the first subsystem is detected. In response to detecting the fault, a status indication is updated, and a resource used by the first subsystem is freed up. | 06-12-2014 |
