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7275141 |
System and method for performing a full copy in a data storage environment having a capability for performing an incremental copy
This invention is a system and method copying with unmarked data along with a capability for incremental copying of data in a data storage environment.
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7275075 |
Copy process substituting compressible bit pattern for any unqualified data objects
A copy procedure detects qualified data objects in a body of source data, and copies the source data to a target storage unit except for unqualified data objects, which are replaced with a...
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7272666 |
Storage management device
A storage management device includes a plurality of I/O processing modules for accessing units of storage by specifying an address and a time. The I/O processing modules receive I/O requests,...
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7272693 |
Storage system and back-up method for storage system
The present invention provides a storage system whereby it is also possible to back up the generational management information of a copy source disk array device. The disk array device of the...
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7269701 |
Self-configuration of source-to-target mapping
A computer program for automatically pairing target resources 20 such as volumes or logical units to source resources 20 containing data to be copied. Available target pools 48, 50, 52, 54 of...
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7269631 |
Architecture for parallel distributed table driven I/O mapping
The present invention provides a system and method for creating virtualized storage in a storage area network using distributed table-driven input/output mapping. The present invention distributes...
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7266653 |
Remote data mirroring with acknowledgment upon writing copied data to volatile cache memory
A method for storing data received from a host processor at a primary storage subsystem in a data storage system includes writing the data to a first volatile cache memory in the primary storage...
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7266654 |
Storage system, server apparatus, and method for creating a plurality of snapshots
In a storage system with a server apparatus having at least one CPU, a memory, at least one network interface, and at least one storage interface, and, at least one disk connected to the storage...
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7266655 |
Synthesized backup set catalog
Synthesized backup set catalogs are created to more efficiently create synthetic full backups of a data volume or to more efficiently restore a data object of the data volume. In one embodiment,...
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7266656 |
Minimizing system downtime through intelligent data caching in an appliance-based business continuance architecture
A system for minimizing downtime in an appliance-based business continuance architecture is provided. The system includes at least one primary data storage and least one primary host machine. The...
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7266657 |
Data protection device and method of securing data
A data protection device capable of securing data in a data storage device is disclosed, comprising a disk space allotment unit, a marking unit, and an archiving unit. The disk space allotment unit...
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7266645 |
Reducing communication for reads and updates in distributed object systems
In a distributed system, a server may distribute a primary object copy having one or more chunks of data associated with a primary per-chunk metadata copy to a client over a network. The client may...
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7260739 |
Method, apparatus and program storage device for allowing continuous availability of data during volume set failures in a mirrored environment
A method, apparatus and program storage device for allowing continuous availability of data during volume set failures in a mirrored environment. Continuous servicing of input/output request for a...
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7257675 |
Disk array device having snapshot simulation function
A disk array device enabling an appropriate estimation of a physical disk capacity necessary prior to introducing a snapshot function. If a valid flag of the snapshot simulation function of a...
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7257653 |
Switching between copy mode and synchronous RDF mode
Transferring data from a local storage device to a remote storage device includes providing, to a portion of the local storage device, data to be transferred from the local storage device to the...
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7257257 |
Method and apparatus for differential, bandwidth-efficient and storage-efficient backups
A process is introduced that determines contour requirements from many factors. Based on the contour requirements, the process either generates at least one content-derived signature contour from...
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7257688 |
Information processing system with redundant storage having interleaved master storage and substorage regions
Duplicate data are stored in separate storage units SU( 0 ) 16 and the SU( 1 ) 26 , respectively. The storage area in each of the SU( 0 ) 16 and the SU( 1 ) 26 is divided into master storage...
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7257606 |
Methods of snapshot and block management in data storage systems
The present invention relates to methods and systems of snapshot management of a file system in a data storage system. To represent the snapshots, the invention maintains pointers to the root block...
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7257674 |
Raid overlapping
A first array of disk drives overlaps with a second array of disk drives in a Redundant Array of Inexpensive Drives (RAID) system, in which the first and second arrays share at least one disk...
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7257811 |
System, method and program to migrate a virtual machine
A system, method and program product for migrating a first virtual machine from a first real computer to a second real computer or from a first LPAR to a second LPAR in a same real computer. Before...
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7257652 |
Method and system for filesystem mounted on a root directory wherein data is redirected from a first storage system to a second storage system
An automated method of establishing a filesystem utilizing the establishment of a first filesystem that interfaces with devices by loading software, including a first set of drivers, into memory...
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7257690 |
Log-structured temporal shadow store
A log-structured temporal shadow store may comprise a logical storage aggregation including a plurality of blocks, a log-structured storage device, and shadow management software. The...
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7257689 |
System and method for loosely coupled temporal storage management
A system for loosely coupled temporal storage management includes a logical storage aggregation including a plurality of data blocks, a data producer, one or more data consumers, and a temporal...
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7254685 |
Method for maintaining high performance while preserving relative write I/O ordering for a semi-synchronous remote replication solution
A remote replication solution for a storage system receives a stream of data including independent streams of dependent writes. The method is able to discern dependent from independent writes. The...
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7254684 |
Data duplication control method
When there is a change in a group of volumes managed by a host computer, data duplication processing is immediately carried out against the changed volume. The host computer includes a...
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7254686 |
Switching between mirrored and non-mirrored volumes
Provided are a method, system, and article of manufacture, wherein a request is received for switching a logical volume from one state to another state, wherein the logical volume is in a mirrored...
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7254683 |
Speculative data mirroring apparatus method and system
An apparatus, method, and system for speculative data mirroring include a rollback log that receives write data corresponding to a write operation that is directed to a storage region within a...
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7251713 |
System and method to transport data snapshots
A system for backing up data includes a first computer configured to access a first storage device and a second computer configured to access a second storage device. In particular, the first...
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7251708 |
System and method for maintaining and reporting a log of multi-threaded backups
Systems and methods for performing multi-threaded backups and restores. In one embodiment, a log is maintained to record the source of write commands, and the order in which blocks of data are...
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7246211 |
System and method for using file system snapshots for online data backup
A system and method for providing online data backup for a computer system. In which the computer system includes an intermediate block data container. The computer system may utilize the...
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7246212 |
Memory device system and method for copying data in memory device system
In a memory apparatus, there are provided a mirror primary LU which is a memory region on a plurality of storage media formed of nD+1P, a mirror secondary LU that is a memory region on a plurality...
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7243198 |
Method and system for transporting data content on a storage area network
A system and method of transporting volumes of information from one host computer system to another using point-in-time copies of LUNs but wherein the hardware provider does not necessarily...
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7243196 |
Disk array apparatus, and method for avoiding data corruption by simultaneous access by local and remote host device
When copy instruction details are transferred to a first storage control unit from an application program, a channel processor captures the instruction details into local memory. Then, the...
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7243197 |
Method and apparatus for backup and recovery using storage based journaling
A storage system maintains a journal of journal entries and at lease one snapshot of one or more data volumes. By assigning a unique sequence number to journal and snapshot, it is easy to find a...
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7240171 |
Method and system for ensuring consistency of a group
One aspect of the invention is a method for ensuring consistency of a group, which for example, includes receiving a first list that identifies objects in the group, and gathering for at least one...
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7239797 |
Data storage and reproduction apparatus storing and reproducing multimedia data
An HDD is divided into a segment area storing multimedia data, an information file area storing an information file of a file, and a system information area storing a system information file....
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7240235 |
Journaling technique for write transactions to mass storage
A technique includes writing blocks of data from a plurality of servers to an array of disks that are shared in common by the servers. Prior to the writing in each block of data to the array of...
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7240173 |
Data processing system
A data processing system has a plurality of storage systems. In this system, data replication is performed at high speed and efficiency while maintaining data integrity. In addition, when failure...
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7240172 |
Snapshot by deferred propagation
An embodiment of the invention provides a method for creating a snapshot of a data store. A command to create a snapshot of an original data store, stored to a parent virtual logical unit (VLU), is...
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7240079 |
Method and arrangement for securing a digital data file having financial value, terminal operating in the arrangement, and software application employing the method
A method for creating an electronic data file from information residing in the memory of a first device operating in a data communication system includes storing information identifying the owner...
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7237078 |
Remote copy system
The computer system comprises a first and second computer, at least one first storage system connected to the first computer, and a plurality of second storage systems connected to the second...
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7237075 |
Persistent snapshot methods
A persistent snapshot is taken and maintained in accordance with a novel method and system for extended periods of time using only a portion of a computer readable medium of which the snapshot is...
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7237077 |
Tool for disk image replication
A method and apparatus for replicating an image from a source to a destination disk are provided. Specific embodiments may be optimized for single source to multiple destination replication...
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7237056 |
Tape mirror interface
A tape mirror interface comprises an input terminal coupled to at least one input node and capable of receiving data transfer requests, a plurality of output terminals coupled to a plurality of...
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7237063 |
Volume providing system and method
A host computer HA 1 or the like is provided with a target program 3 that receives the provision of logical volumes 212 , a volume interface program 12 A that provides an interface for the...
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7237080 |
Persistent snapshot management system
A persistent snapshot is taken and maintained in accordance with a novel method and system for extended periods of time using only a portion of a computer readable medium of which the snapshot is...
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7237076 |
Method of maintaining a plurality of snapshots, server apparatus and storage apparatus
Snapshots are implemented by combining original data in a place where an operational volume has been updated with data in a place where the operational volume has not been updated. A snapshot...
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7237079 |
Data migration method and a data migration apparatus
The management computer 600 copies data in the volume 111 within the storage device 100 A to the volume 115 within the storage device 100 B. Upon completion of copy processing, the volume ...
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7234033 |
Data synchronization of multiple remote storage facilities
A processing system includes a local or local storage and a number of remote or remote storage systems that store data mirroring that maintained by the local storage system. Data that is written,...
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7228381 |
Storage system using fast storage device for storing redundant data
A computer storage system includes a controller and a storage device array. The storage device array may include a first sub-array and a fast storage device sub-array. The first sub-array includes...
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