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| Number | Title | Issue Date |
| 7694095 | Managing snapshots using messages A method and apparatus for managing snapshots of a file system using messages. A snapshot is a restorable version of a file system created at a predetermined point in time. A message is a persistent data structure supported by a file server. A message may include on... | 04/06/2010 |
| 7694086 | Method and system for incremental backup of data volumes A method and system for incremental backup is disclosed. The method includes attaching a first plex to a log, which includes a log plex. The method also includes writing data to said log plex and said first plex. ... | 04/06/2010 |
| 7694087 | Duplicate data storing system, duplicate data storing method, and duplicate data storing program for storage device Provided is a data storing system which holds only updated data by a snapshot action of a disk array subsystem. When there is generated a writing request to snapshot duplicate volumes as the duplicate data storing areas, unused pages for the requested amount is sear... | 04/06/2010 |
| 7689607 | Database page mirroring Systems and methods are presented that facilitate automatic database backup and restore for databases resident in personal computing devices, and which are transparent to a user, utilizing database page mirroring. Modifications to a data page in a data file can be v... | 03/30/2010 |
| 7685387 | Storage system for multi-site remote copy Information about remote copy target volumes of other storage systems 2 each having one and the same original volume V1 is registered for each remote copy target volume in advance. When there occurs a failure in a copy source storage system 2, a... | 03/23/2010 |
| 7685388 | Method and system for single pass volume scanning for multiple destination mirroring A method for operating a computer data storage system stores snapshots of an active file system of the storage system at a plurality of destinations. A latest snapshot stored at each destination of the plurality of destinations is identified. Those data blocks which... | 03/23/2010 |
| 7685386 | Data storage resynchronization using application features A data storage resynchronization system is provided. The system includes a primary site having a primary server, primary storage unit, primary replication agent, and a primary storage controller. Data is written to primary pages on the primary storage unit upon rece... | 03/23/2010 |
| 7685383 | Vehicle data backup method In a vehicular system (1) configured such that data can be transmitted and received via a data bus (4) between an engine electronic control unit (2) for controlling an engine and electronic units (3-1 to 3-n) including a dat... | 03/23/2010 |
| 7685384 | System and method for replicating files in a computer network A system and method for performing real-time replication of data across a network is provided. A mirroring engine receives a write request from a host application operating on a source computer. The mirroring engine compares data in the write request with correspond... | 03/23/2010 |
| 7685189 | Optimizing backup and recovery utilizing change tracking Application data associated with an application program located on a storage device is restored utilizing tracked changed blocks of the storage device. The changed blocks of the storage device are tracked as the application program modifies the application data. Whe... | 03/23/2010 |
| 7685385 | System and method for satisfying I/O requests before a replica has been fully synchronized Various methods and systems are disclosed for handling I/O requests to a replica that has not yet been fully synchronized. One method involves detecting the transfer of the role of working volume from a first volume to a second volume. The second volume is configure... | 03/23/2010 |
| 7680998 | Journaled data backup during server quiescence or unavailability A backup is performed by a client at a time when a backup server is unable to process the backup. The client maintains a cache including a root tag vector and hash entries. The client begins a backup by writing the root tag vector to a journal file and breaking file... | 03/16/2010 |
| 7680995 | Data replication system and method for clustered systems In a clustered processing system, replication logic controls replication of object data to one of more replica instances. Correction logic generates correction data based on the object data and generates code words by combining the object data and the correction dat... | 03/16/2010 |
| 7680996 | Method and system for shrinking a set of data using a differential snapshot, a watch-list structure along with identifying and retaining updated blocks At the beginning of an online backup operation, the backup software system creates a snapshot of source data storage. The snapshot includes a watch-list used for identifying blocks of a source storage which are watched by snapshot management means for update. If a b... | 03/16/2010 |
| 7680997 | Data recovery simulation Handling failure of a primary group at a first data center may be simulated by cloning the at least one storage volume at a second data center, cloning at least one storage volume at a third data center, cloning at least one of: buffers used for providing data to th... | 03/16/2010 |
| 7676640 | Flash memory controller controlling various flash memory cells An electronic data flash card is accessible by a host system, and includes a flash memory controller and at least one flash memory device coupled to the flash controller. The boot code and control code for the flash memory system (flash card) are stored in the flash... | 03/09/2010 |
| 7676641 | Storage system with multiple copy targeting and disk failure protection An apparatus is disclosed in which a storage controller cooperable with a host and a plurality of controlled storage is provided to localize an impact of a failure to a target disk in an affected segment. The storage controller includes a host write component to wri... | 03/09/2010 |
| 7676514 | Distributed maintenance of snapshot copies by a primary processor managing metadata and a secondary processor providing read-write access to a production dataset A primary processor manages metadata of a production dataset and a snapshot copy, while a secondary processor provides concurrent read-write access to the primary dataset. The secondary processor determines when a first write is being made to a data block of the pro... | 03/09/2010 |
| 7673106 | Computer system, management method and storage network system A storage network system that can be kept running despite a failure in a host computer is provided. A computer system includes: first, second and third storage systems which store data and are connected to one another; a primary host computer connected to the first ... | 03/02/2010 |
| 7673107 | Storage system and storage control device A virtualization system, including: at least one first port coupled to at least one host system; at least one second port coupled to a plurality of storage systems; wherein the virtualization system is capable to control to perform processes of splitting a relations... | 03/02/2010 |
| 7669021 | File system based offline disk management Logically imaging a memory area or a portion thereof while the memory area is offline. For each partition of a selected volume of the memory area, the logical files are captured along with volume and partition information and stored in an image file to enable logica... | 02/23/2010 |
| 7669022 | Computer system and data management method using a storage extent for backup processing A computer system for preventing data loss that includes: a first storage system having a data storage extent for storing data sent from a host computer; a second storage system having at least one actual replicated data storage extent associated with the data stora... | 02/23/2010 |
| 7669020 | Host-based backup for virtual machines A system, method, and computer-accessible medium for centralized backup of a plurality of virtual machines are disclosed. Each virtual machine comprises at least one virtual volume. The plurality of virtual volumes are accessed through a central computer system. The... | 02/23/2010 |
| 7669023 | Power efficient storage with data de-duplication Power consumption in a storage system is reduced by selectively controlling power supplied to the storage devices, while also incorporating a de-duplication function to reduce the amount of required storage capacity. First storage devices are initially in a powered ... | 02/23/2010 |
| 7669024 | Storage system with multiple copy targeting A storage controller, cooperable with host computer apparatus, and a plurality of controlled storage apparatus, comprises a host write component operable to write a data object to a source data image at one of the plurality of controlled storage apparatus; a first c... | 02/23/2010 |
| 7664923 | Method and system for updating software A method and a system for updating software stored in a flash memory, which enables a user to resume a suspended updating process even when log data stored in a journaling area is lost. According to the present invention, log data indicating the results of implement... | 02/16/2010 |
| 7660957 | 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 has occurred in a configuration element, the time necessary to resume ... | 02/09/2010 |
| 7660958 | Maintaining consistency for remote copy using virtualization Provided are a system and article of manufacture for copying storage, wherein a first unit receives data updates from a second unit. The data updates are stored in a plurality of physical storage locations associated with the first unit. Links are generated to at le... | 02/09/2010 |
| 7660954 | Techniques for saving data The invention concerns a system for saving data derived from a mainframe characterized in that it comprises a computer equipment including an input/output interface for exchanging data with the guest computer, said interface comprising a backup document reader/inscr... | 02/09/2010 |
| 7660956 | Save set bundling for staging Backing up data blocks is disclosed. An indication that a first set of one or more backed up data blocks are related at an application level to one or more other sets of one or more backed up data blocks is received. An associating data that associates the first set... | 02/09/2010 |
| 7660955 | Node polling in consistency group formation Provided are a method, system, deployment and program for managing data transfer in consistency group formation. In one embodiment, nodes are periodically polled to determine traffic conditions. An estimated drain time for a node such as the most congested node, for... | 02/09/2010 |
| 7657720 | Storage apparatus and method of managing data using the storage apparatus Provided is a storage apparatus operable to prevent incomplete backup and perform efficient backup even in systems characterized by a relatively small backup window and high degrees of utilization by users. This storage apparatus performs a snapshot of a volume stor... | 02/02/2010 |
| 7657719 | Controller for a copy operation between a host computer and hard disks, a control method thereof, and a recording medium storing a program for executing the control method A disk array device includes a controller that sets a session pertaining to a copy source disk and a copy destination disk, and without copying the entire data that is recorded in the copy source disk to the copy destination disk, copies to the copy destination disk... | 02/02/2010 |
| 7657721 | 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 management table maintains a value indicating that update has not been con... | 02/02/2010 |
| 7657716 | Save and restore of a protected area A method, apparatus, system, and signal-bearing medium that in an embodiment save a protected area of a storage device by booting to the protected area, copying the contents of the protected area to the user area of the storage device, rebooting to the user area, an... | 02/02/2010 |
| 7657717 | Coherently sharing any form of instant snapshots separately from base volumes A computer system that implements a method for creating a virtual snapshot of a first storage object. A first storage object such as a data volume is created, wherein creating the first storage object includes creating a first storage object description. This first ... | 02/02/2010 |
| 7657718 | Storage automated replication processing Described are techniques used in performing data replication processing. Data is replicated on a recovery site from a production site. When a disaster occurs, the state of the replication processing is determined and a restart copy of the data is made available from... | 02/02/2010 |
| 7653794 | Converting physical machines to virtual machines Physical (or prior virtual) machine volumes can be converted to virtual machines at a virtual machine host while the physical machines are running. In one implementation, a volume shadow copy service can be used to create an application (and/or file system)-consiste... | 01/26/2010 |
| 7650477 | Method for changing a remote copy pair During an asynchronous remote copy process for a plurality of asynchronous remote copy pairs, a copy of data in a migration source primary storage area is stored in a migration destination primary storage area, and the copy of data in the migration source primary st... | 01/19/2010 |
| 7650475 | Storage system and method for managing data using the same A storage apparatus enables efficient data restoration even if restoration is attempted using several different restoration points. The storage system is connected to a host apparatus, and includes a storage unit having various logical volumes formed therein and a c... | 01/19/2010 |
