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7464233 |
Data input/output method in information processing system, and information processing system
An input/output method is provided which assures data consistency of a file spreading over a plurality of logically significant volumes or files distributed among a plurality of volumes. A storage...
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7464239 |
System and method for remote mirror data backup over a network
Disclosed is a method and a system for remote mirror data backup over a network. The system comprises a local domain site and at least one remote domain site, wherein each site has one domain...
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7464235 |
Storage system and control method thereof, and computer program product
Provided is a storage system having a host system, a first storage controller and a second storage controller. The first storage controller has a primary logical volume formed from an actual...
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7464240 |
Hybrid solid state disk drive with controller
A solid-state disk drive includes a first portion of solid-state memory of a volatile nature, a second portion of solid-state memory of a non-volatile nature, a controller for managing the...
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7464237 |
System and method for implementing a fast file synchronization in a data processing system
A system and method for implementing a fast file synchronization in a data processing system. A memory management unit divides a file stored in system memory into a collection of data block groups....
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7464220 |
Storage apparatus and method of controllng the same
A storage apparatus comprising a plurality of nodes through which write-data received from a host is written into a disc, each of the nodes including a first memory in which the write-data is...
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7464234 |
Position independent incremental backup
Mechanisms for backing up at least a portion of storage at a primary computing system to a backup computing system. The primary system identifies primary memory block(s) that have altered content...
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7464238 |
System and method for verifying the consistency of mirrored data sets
A system and method for verifying the consistency of mirrored data sets is provided. A verification module executed on a destination storage system transmits a list of desired persistent...
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7461221 |
Apparatus, system, and program for automatic backup of related data
An apparatus, system, and program are disclosed for automatically backing up groups of related data. The apparatus includes a plurality of data cells capable of storing data. The apparatus also...
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7461201 |
Storage control method and system for performing backup and/or restoration
A second storage system (SS2) comprises a plurality of tapes, a first storage device capable of performing random access at a rate higher than the tapes, and a virtual storage device emulating the...
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7461227 |
Storage system and data backup method for the same
A storage system includes a network adapter, a channel adapter, a shared memory, a cache memory, a disk adapter, a switch and a storage device. The storage device stores data. The network adapter...
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7461229 |
Software program for managing and protecting data written to a hybrid solid-state disk drive
A machine-readable medium is provided having stored thereon a set of instructions that cause a controller of solid-state disk having a first portion of solid-state memory of a volatile nature and a...
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7461196 |
Computer system having an expansion device for virtualizing a migration source logical unit
A migration destination storage creates an expansion device for virtualizing a migration source logical unit. A host computer accesses an external volume by way of an access path of a migration...
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7461226 |
Multi-site remote-copy system
Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a...
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7461225 |
Storage system and replication creation method thereof
In a storage system having a plurality of control units each connected with a plurality of disk units, it is provided that a replication is created in the volume of the disk units connected to...
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7461223 |
Retaining shadow copy data during replication
Implementations of the present invention provide systems, methods, and components configured to preserve valid shadow copies during replication cycles, before those valid shadow copies have...
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7461230 |
Maintaining spatial locality of write operations
A method, system, computer system, and computer-readable medium that identify the number of times areas of storage are updated and use that information to synchronize primary and secondary storage...
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7457927 |
Memory dump of a computer system
A memory dump of a memory of a computer system having a first set of bytes and a second set of bytes. The first set of bytes includes application data, and the second set of bytes includes a...
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7457925 |
Storage control method and system
To enable favorable control of the storage of electronic information, a management device connected communicably to one or more storage control devices that are connected communicably to at least...
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7457982 |
Writable virtual disk of read-only snapshot file objects
A technique enables creation and use of a writable, read-only snapshot of an active file system operating on a storage system, such as a multi-protocol storage appliance. The writable, read-only...
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7457928 |
Mirroring system memory in non-volatile random access memory (NVRAM) for fast power on/off cycling
A computer comprising a processor, a volatile main store, a non-volatile random access memory (NVRAM) mirror store, and optionally a cache for the non-volatile mirror store. While programs of the...
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7457929 |
Data processing system having a plurality of storage systems
It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more...
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7454558 |
Non-volatile memory with erase block state indication in data section
An improved Flash memory device with a distributed erase block management (EBM) scheme is detailed that enhances operation and helps minimize write fatigue of the floating gate memory cells of the...
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7454591 |
Storage system control method, storage system, and storage apparatus storing information relating a first logical unit number (LUN) used to access a volume by a host computer and a second LUN used to access the volume by another storage system with remote copy procedure
A method controls a storage system including a first storage apparatus including a first storage volume to store data therein, a second storage apparatus including a second storage volume to store...
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7454582 |
Initial copy system
A storage apparatus installed in a first site generates a snapshot of a copy source logical device in an intermediate logical device. Next, an external storage apparatus including a logical device...
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7454569 |
Hierarchical system and method for performing storage operations in a computer network
A system for performing storage operations using hierarchically configured storage operation cells, the system comprising: a first storage manager component; and a first storage operation cell, the...
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7454562 |
Performance information in digital storage memory module apparatus and method
A digital storage memory module ( 200 ) comprises a housing ( 201 ) having a first memory ( 202 ) and a second memory ( 205 ) disposed therein. In one embodiment the first memory comprises, for...
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7454583 |
Storage controller and control method for dynamically accomodating increases and decreases in difference data
In a storage controller which stores data provided from a host system, creates a snapshot, which is a data image of a production volume at a given point in time, at regular or irregular intervals,...
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7451285 |
Computer systems, management computers and storage system management method
A computer includes a management computer connected to a host computer, first and second primary storage systems, first and second secondary storage systems, a primary external storage system...
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7451283 |
Method, system, and program for copying tracks between a primary storage and secondary storage
Provided are a method, system, and program for copying tracks between a primary controller and secondary controller. A track is received from the primary controller that is part of a copy job...
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7451287 |
Storage system and remote copy method for storage system
A storage system including a primary storage device having a primary volume, and a secondary storage device having a secondary volume, a generation restoration portion, and a generation management...
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7451168 |
Incremental garbage collection of data in a secondary storage
A method and apparatus for different embodiments of incremental garbage collection of data in a secondary storage. In one embodiment, a method comprises locating blocks of data in a log that are...
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7451286 |
Removable portable data backup for a network storage system
A storage server creates a first mirror of a primary volume of data on a first storage set that includes at least one disk and creates a second mirror of the primary volume, on a second storage set...
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7451284 |
Storage system and control method of the same
The invention provides a storage system which can estimate a necessary capacity at the time of acquiring a snap shot copy without actually sampling the snap shot copy, and a control method of the...
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7447714 |
Management of multiple virtual data copies
More than two copies of data in a storage management system may be managed by directing at least one virtual volume to a receiving management class within the storage management system. Each...
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7447854 |
Tracking and replicating changes to a virtual disk
A mechanism is provided to maintain multiple copies of a virtual disk associated with a virtual machine by a synchronization function. The content of a first virtual disk is maintained, as a copy,...
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7447850 |
Associating events with the state of a data set
In a data storage system, events are associated with the state of a data set at specific points in time, the data set being a collection of addressable storage that is modified by a host computer...
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7447855 |
Data processing method providing remote copy in a system having first, second, and third storage systems
A data processing system includes at least a first storage system, a second storage system and a third storage system. The third storage system maintains a replication of data stored in the first...
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7447856 |
Copy engine and a method for data movement
A copy engine ( 104 ) is provided as an interface between firmware ( 108 ) and memory space ( 106 ) for carrying out copy operations. The copy engine has a first register ( 202, 203 ) to point to a...
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7447857 |
Multi-client cluster-based backup and restore
Backup and restore technology comprising a backup engine, one or more client backup modules coupled to the backup engine via a backup protocol, and a backup database coupled to the backup engine,...
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7447852 |
System and method for message and error reporting for multiple concurrent extended copy commands to a single destination device
One embodiment of the present invention can include a method for message and error reporting for multiple extended copy commands that comprises receiving a message from a destination device that is...
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7447859 |
Method of performing active data copying processing, and storage subsystem and storage control apparatus for performing active data copying processing
When an active data copy process relative to a logical storage device is performed without involving a computer, an access permission/rejection of the computer to the logical storage device is...
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7447853 |
Data copy device
The invention relates to a data copy device engaged between two storage media each connected to an IDE or IDE-compatible interface, especially relates to a data copy device which requires both...
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7444485 |
Method and apparatus for duplicating computer backup data
Method and apparatus for performing logical duplication of backup data in a computer system including a host computer, a storage device storing data for the host computer, and at least one...
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7444465 |
Tape emulating disk based storage system and method
A data protection and storage system includes an array of disk drives for data storage. Data is received for storage on the disk drive via an interface that is configured to emulate a tape drive...
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7441091 |
Storage control device and storage control method
Provided is a storage control system enabling the prompt execution of data backup from a primary storage to a backup device, and capable of backing up data of the primary storage in the backup...
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7441096 |
Hierarchical storage management system
A hierarchical storage system comprises a host computer and a storage system. The storage system comprises at lease two kinds of storage devices, a first tier storage and a second tier storage. The...
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7441085 |
Memory control method for restoring data in a cache memory
A memory control method for restoring data in a cache memory is proposed, which is applied in a computer device having Operating System, and the computer device has a spare battery for supplying...
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7437387 |
Method and system for providing a file system overlay
A method and system wherein a plurality of different file system views may be provided for the same data. Data copied in a sequential format to a disk based repository using a data protection...
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7437523 |
System and method for on-the-fly file folding in a replicated storage system
A file folding technique reduces the number of duplicate data blocks of the file consumed on a storage device of a file server. According to the file folding technique, the “old” data blocks...
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