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| Number | Title | Issue Date |
| 7930496 | Processing a read request to a logical volume while relocating a logical volume from a first storage location to a second storage location using a copy relationship Provided are a method, system, and article of manufacture for relocating a logical volume from a first storage location to a second storage location using a copy relationship. An operation is initiated to move a logical volume from a first storage location to a seco... | 04/19/2011 |
| 7930497 | Using multiple sidefiles to buffer writes to primary storage volumes to transfer to corresponding secondary storage volumes in a mirror relationship Provided are an article of manufacture, method, and system for using multiple sidefiles to buffer writes to primary storage volumes to transfer to corresponding secondary storage volumes in a mirror relationship. Information is provided on a mirror relationship for ... | 04/19/2011 |
| 7930498 | Method for replicating snapshot volumes between storage systems An apparatus, system, and method for replicating a snapshot volume in a first storage system to a second storage system includes mapping information corresponding to data in the first storage system that is transferred from the first storage system to the second sto... | 04/19/2011 |
| 7925852 | Storage controller and data management method Upon receiving a primary/secondary switching command from a secondary host system, a secondary storage control device interrogates a primary storage control device as to whether or not yet to be transferred data that has not been remote copied from the primary stora... | 04/12/2011 |
| 7925851 | Storage device A storage device is provided with a file I/O interface control device and a plurality of disk pools. The file I/O interface control device sets one of a plurality of storage hierarchies defining storage classes, respectively, for each of LUs within the disk pools, t... | 04/12/2011 |
| 7925850 | Page signature disambiguation for increasing the efficiency of virtual machine migration in shared-page virtualized computer systems A system for increasing the efficiency of migrating, at least in part, a virtual machine from a source host to a destination host is described wherein the content of one or more portions of the address space of the virtual machine are each uniquely associated at the... | 04/12/2011 |
| 7921081 | Managing a snapshot stored within a file system space for efficient detection of in-use blocks In one embodiment, at least one snapshot thread manages a point in time snapshot of a file system stored within the space allocated to the file system. The snapshot thread tracks, for at least one block of the plurality of blocks of the file system, a separate entry... | 04/05/2011 |
| 7921093 | Information processing apparatus and information processing method Providing an information processing apparatus and information processing method that prevent the occurrence of inconsistencies between restored files and other files, thereby improving ease of use. When restoring a backup virtual tree, the owner of each file and dir... | 04/05/2011 |
| 7921268 | Method and system for function-specific time-configurable replication of data The system and method of the invention provides for function-specific replication of digital data, such as files or objects, with a configurable time delay for each function to be replicated. The system includes a source storage system from which digital data is to ... | 04/05/2011 |
| 7921269 | Storage subsystem and storage system for updating snapshot management information The first storage subsystem, when new data is written in a first memory device beyond a certain timing, writes pre-updated data prior to update by said new data into a pre-updated data memory region and, in addition, updates snapshot management information that expr... | 04/05/2011 |
| 7921267 | Method and system for fixing a mirror of a dataset A system and method for fixing data inconsistency between an original dataset stored on a source storage server and a mirror of the original dataset stored on a destination storage server is provided. The method determines whether the mirror is consistent with the o... | 04/05/2011 |
| 7917714 | 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 ... | 03/29/2011 |
| 7917711 | System, apparatus, and method for automatic copy function selection The invention automatically selects a copy function according to a policy associated with data to be copied. The apparatus comprises an identification module configured to identify available copy functions in response to a data copy request that includes a predefine... | 03/29/2011 |
| 7917712 | Method and system for governing access to storage device on SAN The present invention in at least some embodiments relates to improved methods and systems for governing access to SAN data storage devices (or simply “SAN devices”) employed in SAN systems. In some embodiments, the method involves storing a list at a SAN device... | 03/29/2011 |
| 7917713 | Optimized data migration with a support processor A system migrates data between a source device and a target device in a storage system. A processor is operational within a local domain of the storage system. A redundant array of independent disks (RAID) controller electrically connected to the processor. The RAID... | 03/29/2011 |
| 7912815 | Method and system of automatically monitoring a storage server A monitoring server remotely communicates with a storage server in order to monitor utilization of storage space of a write out-of-place file system on the storage server, the file system including a persistent point-in-time image (PPI) of its active file system, th... | 03/22/2011 |
| 7913044 | Efficient incremental backups using a change database Efficient incremental backups using a change database is disclosed. Based at least in part on a file attribute it is determined that a file has changed since a previous backup. Change data is stored in a data structure additional to a file system with which a file i... | 03/22/2011 |
| 7913043 | Method for backup storage device selection A method and system for backing up computer data uses a network device to select a storage device in a manner that enhances at least one parameter associated with the backup process. ... | 03/22/2011 |
| 7913047 | Method and system for optimizing data backup There is provided a method for optimizing a data backup. The method comprising determining a backup project size, the backup project size identifying the quantity of data to be backed up; detecting available recording devices for transferring the data backup to stor... | 03/22/2011 |
| 7913045 | Storage system comprising backup function A storage resource including one or more first storage devices; a first logical volume formed according to storage space of the storage resource; a member for accommodating a removable second storage device selected by a user; and a backup unit, the backup unit exec... | 03/22/2011 |
| 7913046 | Method for performing a snapshot in a distributed shared file system A method for performing a snapshot in a distributed shared file system (DSFS) is provided. The method includes synchronizing a snapshot operation among a plurality of domains of the DSFS; writing pending write requests to a memory to suspend write operations for the... | 03/22/2011 |
| 7908447 | Storage apparatus and volume restoration method A storage apparatus conducts, in a protection period, data protection processing for protecting, in a third logical volume, data stored in a first logical volume by using backup data stored in a second logical volume, and suspends the data protection processing in a... | 03/15/2011 |
| 7908448 | Maintaining data consistency in mirrored cluster storage systems with write-back cache Techniques for maintaining mirrored storage cluster data consistency on systems with write back cache can employ write-intent logging and periodic log clearing. The techniques can track any outstanding I/Os, data in caches, and data that has gone out of sync between... | 03/15/2011 |
| 7908446 | Copy system and method using differential bitmap Proposed are a copy system and a copy method capable of performing initial copy in a short amount of time and with high reliability. On a primary side, the area in the first volume to which data was written from the host is managed, a second bitmap is created reflec... | 03/15/2011 |
| 7904684 | System and article of manufacture for consistent copying of storage volumes Provided are a system and article of manufacture for copying storage. Copy operations are performed on source storage units to copy to target storage units, wherein the copy operations create a consistent copy of the source storage units in the target storage units.... | 03/08/2011 |
| 7904683 | Storage system Provided is a storage system enabling the addition of a storage apparatus without going offline. When a first storage apparatus receives from a host system a command for writing first data in any one of the primary volumes in a primary volume group, it writes the fi... | 03/08/2011 |
| 7904680 | Data access management system as well as a method for data access and data management for a computer system The present invention permits improved data access and improved data management in a computer system. To this end, data are divided into individual partial data (F) and stored in cells (Z) of storage devices (C) in such a way that the partial data (F) being accessed... | 03/08/2011 |
| 7904681 | Methods and systems for migrating data with minimal disruption Methods and systems are disclosed that enable data migration from a source logical volume to a target logical volume in signal communication with the source logical volume with minimal disruption to the accessibility of that data. The coherency of data on the source... | 03/08/2011 |
| 7904678 | Technique for recovering mirror consistency in cooperative virtual storage Disclosed is a method implementable by a computer system for maintaining consistency between mirrors of a mirrored data volume. In one embodiment, the method includes the computer system generating first and second write transactions in response to the generation of... | 03/08/2011 |
| 7904682 | Copying writes from primary storages to secondary storages across different networks Provided are a method, system, and article of manufacture for copying writes from primary storages to secondary storages across different networks. A failure notification is communicated, using a first network protocol, from a primary device in a first group of at l... | 03/08/2011 |
| 7904679 | Method and apparatus for managing backup data A method and apparatus for managing backup data is disclosed. A data backup system defines a plurality of time windows for creating and maintaining backup data in accordance with a data backup policy. Each of the time windows is assigned a predetermined amount of st... | 03/08/2011 |
| 7900003 | System, method and computer program product for storing an information block A method for storing an information block that includes determining to store a current version of an information block stored in a memory unit. The checking if a current version of the information is already stored in a storage unit. The current version of the infor... | 03/01/2011 |
| 7900006 | Maintaining checkpoints during backup of live system Techniques introduced here support block level transmission of a logical container from a network storage controller to a backup system. In accordance with the techniques, transmission can be restarted using checkpoints created at the block level by allowing restart... | 03/01/2011 |
| 7900004 | Converting backup copies of objects created using a first backup program to backup copies created using a second backup program Provided are a method, system, and article of manufacture for converting backup copies of objects created using a first backup program to backup copies created using a second backup program. A plurality of backup copies of versions of an object are created using a f... | 03/01/2011 |
| 7900005 | Method and system for the transparent migration of virtual machines storage Method for transferring storage data of a virtual machine to be migrated from a first host device to a second host device via a communication network, including: running the virtual machine on the first host device; storing, on a local storage device of the first ho... | 03/01/2011 |
| 7890461 | System executing log data transfer synchronously and database data transfer asynchronously A disaster recovery system and a method therefor, having: a function for receiving write requests from a host computer to write log information indicating the contents of a database process executed for a database buffer on a main site, database data updated on the ... | 02/15/2011 |
| 7890713 | Storage and data protection arrangements managing and setting an access attribute on a storage area basis A storage apparatus and data protection method that can substantially improve the use efficiency of volumes. A virtual first volume is provided to a host apparatus, and a storage area with a necessary capacity from among one or more storage areas is dynamical... | 02/15/2011 |
| 7890718 | System and method for performing time-flexible calendric storage operations A system and method are provided for creating a non-standard calendar that may have customized attributes, such as number of days in a month, first day of a month, number of months in a year, first month of a year, number of years, or other customized attributes. Su... | 02/15/2011 |
| 7890719 | System and method for performing time-flexible calendric storage operations A system and method are provided for creating a non-standard calendar that may have customized attributes, such as number of days in a month, first day of a month, number of months in a year, first month of a year, number of years, or other customized attributes. Su... | 02/15/2011 |
| 7890714 | Redirection of an ongoing backup One method of redirecting an in-process backup operation to a new storage device involves receiving a request to perform a backup from a backup application. In response to reception of the request, the method causes backup information generated by the backup applica... | 02/15/2011 |
