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7627687 |
Methods and apparatus for managing data flow in a continuous data replication system having journaling
Method and apparatus to provide a data replication system to receive a data transfer request from a first component at a transmitter module in a continuous data replication system having a...
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7627616 |
Database storage and maintenance using row index ordering
A computer-implemented method for flexibly storing data in a database so as to allow facile updating and maintenance of the database, including the steps of: (a) providing a first array having rows...
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7620794 |
Storage system with storage apparatuses including virtual switches
An object of the present invention is to integrally manage disk storage apparatuses through virtualization. Some physical storage apparatuses 14 connected to a host computer 10 via a...
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7620786 |
Storage recovery using a delta log
A system and method for removing one volume of a redundant data storage system, keeping a delta log of subsequent changes to the remaining volumes of the redundant data storage system, replacing...
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7620785 |
Using roll-forward and roll-backward logs to restore a data volume
A roll-back memory can be used to incrementally restore one or more data volumes in reverse chronological order to the data state they occupied at some prior point in time without using a backup...
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7620742 |
Write capture for fibre channel fabric snapshot service
The snapshot capability moving into the SAN fabric and being provided as a snapshot service. A well-known address is utilized to receive snapshot commands. Each switch in the fabric connected to a...
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7620665 |
Method and system for a generic metadata-based mechanism to migrate relational data between databases
A method and system for migrating data between databases is provided. Metadata is obtained from a source database and used to determine the manner in which the data within the source database...
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7617369 |
Fast failover with multiple secondary nodes
A method, system, computer system, and computer program product to quickly synchronize replicas of data stored at multiple secondary nodes upon failure of a primary node. Secondary nodes to which...
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7613889 |
System, method, and program for determining if write data overlaps source data within a data migration scheme
Provided are a method, system, and program for migrating source data to target data. A write request is received to write application data to source data not yet migrated to the target data....
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7613888 |
Maintain owning application information of data for a data storage system
A data storage system writes data supplied from a host to data storage in accordance with write I/O of an owning application. A workload manager directs the processing of the supplied data in...
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7613785 |
Decreased response time for peer-to-peer remote copy write operation
Methods, system and computer program product are provided to improve the efficiency of data transfers in a PPRC environment. Any or all of three features may be implemented, each of which reduces...
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7610511 |
Journal migration method and data recovery management method
Provided is a computer system including a first storage subsystem and a second storage subsystem. The first storage subsystem has a first storage unit and a first control unit. The second storage...
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7610459 |
Maintain owning application information of data for a data storage system
A data storage system writes data supplied from a host to data storage in accordance with write I/O of an owning application. A workload manager directs the processing of the supplied data in...
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7607034 |
Data storage system and control method thereof
Hard discs constituting a disc array system are arranged at locations far from one another so as to eliminate their simultaneous damage due to a local disaster and concentration of the processing...
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7606940 |
Remote copy system
A remote copy system includes a first storage system including a first storage controller and a first data volume. The first storage controller is configured to control data access requests to the...
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7603392 |
System, method and computer program product for storing transient state information
A method, system and computer program product for storing transient state information, the method includes: defining a first logical storage space within at least one storage device in response to...
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7600087 |
Distributed remote copy system
Primary storage subsystems synchronously send write data to an intermediate storage system. Upon receiving the write data, the intermediate storage system 100 c generates control data, which...
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7600086 |
Method, system, and program for retention management and protection of stored objects
Provided is a method for managing retention of stored objects, comprising: receiving a modification request with respect to an attribute or archive policy for an object; determining whether an...
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7599932 |
Data storage using identifiers
A system and method are disclosed for processing a data stream. A data segment is received. It is determined whether the data segment has been previously stored. In the event that the data segment...
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7596673 |
Failure tolerant data storage
A method for storing data across N storage devices S 1 . . . S N , wherein at least one the storage devices has a storage capacity not equal to a storage capacity of others involves identifying a...
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7596672 |
Synchronous mirroring including writing image updates to a file
A destination storage server, which may be a filer, mirrors a volume managed by a source storage server, which may also be a filer. According to an embodiment of the invention, changes made to the...
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7596658 |
Method for expanding capacity of replication volume
A management computer comprises: a cascade configuration storage section which stores volume cascade configuration information which is information related to the configuration of the volume...
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7596585 |
Object replication using information quality of service
A database replication function for a local object and one or more destination objects, where one or more local applications make requests to the source objects is disclosed. A request logging...
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7594086 |
Storage system for copying data and storing in a plurality of storage devices
A storage system comprises a primary storage device having a primary storage area, a first secondary storage device having a first secondary storage area, and a second secondary storage device...
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7594074 |
Storage system
To provide a storage system with a cost/performance meeting the system scale, from a small-scale to a large-scale configuration. In the storage system, protocol transformation units and data...
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7590812 |
Apparatus, system, and method for archiving a log
An apparatus, system, and method are disclosed for archiving log data. In one embodiment, an allocation module allocates a plurality of log logical volumes in a storage pool for storing copies of...
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7590808 |
Method and system for synchronizing storage system data
In accordance with an example of an embodiment of the invention, a method for comparing a first unit of data stored in a first storage system and a second unit of data stored in a second storage...
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7590807 |
System and method for record retention date in a write once read many storage system
This invention provides a specified retention date within a data set that is locked against deletion or modification within a WORM storage implementation. This retention date scheme does not...
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7590780 |
Method and computer program product to migrate legacy data to a RAID array while contemporaneously providing user access to legacy data
A method and related computer program product for migrating legacy data to a RAID array while contemporaneously providing user access to legacy data, comprising connecting the legacy drive to the...
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7590667 |
File replication method for distributed file systems
A file replication method which allows, between a plurality of virtualized-and-unified file systems, real-time creation of a partial copy of that one of the virtualized-and-unified file systems as...
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7587617 |
Data repository and method for promoting network storage of data
In general, the invention features methods by which more-than one client program connected to a network stores the same data item on a storage device of a data repository connected to the network....
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7587565 |
Generating automated and scheduled SAN copy sessions for ISB protocol systems
Systems and methods for performing scheduled backups and recovery of data generated by a production application operating on a MAGIC platform located on a host computer. The data is stored in a...
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7587563 |
Method and system to make a read-only file system appear to be writeable
A writeable clone of a read-only dataset, e.g., an RPPI of a file system, a mirror file system, etc., is created to make the read-only dataset appear from a client's perspective to be...
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7584339 |
Remote backup and restore operations for ISB protocol systems
Systems and methods for performing scheduled backups and recovery of data generated by a production application operating on a MAGIC platform located on a host computer. The data is stored in a...
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7584337 |
Method and system for obtaining data stored in a data store
A method, apparatus, and system for accessing units of storage that depends at least in part on an address of the unit of storage and the time that data was written to the unit of storage.
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7581069 |
Multiple computer system with enhanced memory clean up
The updating of only some memory locations in a multiple computer environment in which at least one applications program ( 50 ) executes simultaneously on a plurality of computers M 1 , M 2 . . ....
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7581061 |
Data migration using temporary volume to migrate high priority data to high performance storage and lower priority data to lower performance storage
The storage control device of the present invention uses a temporary volume to move data rapidly between volume groups. The storage control device forms a plurality of volume groups by grouping...
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7577807 |
Methods and devices for restoring a portion of a data store
A storage management device receives a request to restore a portion of a data store to its content at a specified past time, which is selected from a substantially continuous time interval. In...
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7577806 |
Systems and methods for time dependent data storage and recovery
A method, apparatus, and system for accessing units of storage that depends at least in part on an address of the unit of storage and the time that data was written to the unit of storage.
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7577805 |
Using bandwidth and capacity parameters to control remote copy operations in storage systems
A system is provided for storage of journal data from a primary site to a secondary site with a predefined quality of service. In one implementation, the primary storage system stores information...
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7577788 |
Disk array apparatus and disk array apparatus control method
A journal write unit writes journal data into a third storage device. The journal data includes an identifier of a logical volume in a first storage device into which data has been written,...
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7577786 |
Restore accelerator for serial media backup systems
A method for accelerating a tape backup system restore process receives a list of files that are to be restored and searches a tape catalogue to find tape volume and file sequence numbers for each...
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7577689 |
Method and system to archive data
A method and a system is provided of to process data. For example, the method and system may be used to archive documents. In an embodiment, the method includes receiving original data for...
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7574570 |
Billing system for information dispersal system
A billing process is disclosed for a information dispersal system or digital data storage system. In one embodiment of the invention, the original data to be stored is separated into a number of...
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7574459 |
Method and system for verifying data in a data protection system
A method for verifying data copies generated by a data protection system is provided. In accordance with the method, intents for selecting a data copy to be verified are determined. The intents may...
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7571280 |
Cluster-type storage system and managing method of the cluster-type storage system
A storage system 1 includes: plural protocol transformation units 10 that transform, to a protocol within the system, a read/write protocol of data exchanged with servers 3 or hard disk...
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7571268 |
Consistent updates across storage subsystems coupled to a plurality of primary and secondary units at selected times
Provided are a method, system, and article of manufacture, wherein a primary control unit sends a selected time to a plurality of secondary control units. Clocks are periodically synchronized at...
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7571261 |
Service interface for fibre channel fabric snapshot service
The snapshot capability moving into the SAN fabric and being provided as a snapshot service. A well-known address is utilized to receive snapshot commands. Each switch in the fabric connected to a...
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7567991 |
Replication of snapshot using a file system copy differential
A snapshot copy facility stores snapshot copies of a production, file system. The snapshot copy facility receives a request for the difference between a specified older snapshot,copy and a...
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7565500 |
Allocating storage area according to physical position information of a storage device
A method of allocating storage areas, intended to reserve the storage areas formed on a storage device for storing data, this method including the steps of: registering beforehand as a storage...
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