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8688936 Point-in-time copies in a cascade using maps and fdisks  
A technique for handling a FlashCopy® process includes receiving a FlashCopy® instruction for a source disk, performing a FlashCopy® point in time copy of the source disk on to a target disk,...
8688938 Data copying  
A data processing system includes a host and a plurality of locations. A difference recording operation between a first location of the plurality of locations and a second location of the...
8688908 Managing utilization of physical storage that stores data portions with mixed zero and non-zero data  
A method and system is disclosed for storage optimization of thin provisioning. Non-zero data units within data portions are re-allocated to specifically designated one or more areas in the...
8688935 Storage system and method for snapshot space management  
In accordance with certain aspects of the presently disclosed subject matter, there is provided a storage system and a method of storing data thereof. The method comprises: storing a plurality of...
8689043 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...
8688937 Method for optimizing cleaning of maps in flashcopy cascades containing incremental maps  
A method for optimizing cleaning of maps in FlashCopy cascades includes determining whether a target disk of a map contains data unavailable to a downstream disk from an upstream disk in a...
8688950 Mainframe storage apparatus that utilizes thin provisioning  
Each actual page inside a pool is configured from a plurality of actual tracks, and each virtual page inside a virtual volume is configured from a plurality of virtual tracks. A storage control...
8683157 Storage system and virtualization method  
The storage system of the present invention is able to generate one virtual logical device from different logical devices which exist in each of the different storage control units and remote-copy...
8683151 Variable data preservation prewrite  
In one aspect of the present description, a data preservation function is provided for preserving a set of data on a source storage device at a point in time, and includes identifying as a...
8683154 Computer system and system control method  
Operation of an environment that supports both host-based replication and array-based replication is realized. According to the present invention, data in the first storage area is copied first to...
8683152 Fast migration of virtual storage partition data across storage systems  
A method includes reading a superblock of a read-only replica of a source virtual volume in a source virtual storage partition associated with a source aggregate of a source storage system at the...
8683155 Virtualization control apparatus and storage system  
A virtualization control apparatus includes a selection unit that, when receiving a copy request, conducting an access test corresponding to the copy request on each of the virtualization switch...
8683156 Format-preserving deduplication of data  
Data blocks are copied from a source (e.g., a source virtual disk) to a target (e.g., a target virtual disk). The source virtual disk format is preserved on the target virtual disk. Offsets for...
8683144 Causation of a data read against a first storage system to optionally store a data write to preserve the version to allow viewing and recovery  
Machine readable instructions, methods, and systems of causation of a data read against a first storage system to optionally store a data write to preserve the version to allow viewing and...
8683153 Iterating for deduplication  
A method is used in iterating for deduplication. A collection of data is selected from a set of storage extents. The collection of data is comprised of respective subset of the contents of each...
8677067 Storage system and method for controlling storage system  
In a storage system in which storage apparatuses communicatively coupled to a host computer are communicatively coupled to SVPs of the storage apparatuses through a management network, virtual...
8677087 Continuous backup of a storage device  
Continuous backup from a local storage device to a remote storage device includes subdividing the local storage device into subsections, providing a time indicator that is modified periodically,...
8677088 Systems and methods for recovering primary sites after failovers to remote secondary sites  
A computer-implemented method for recovering primary sites after failovers to remote secondary sites may include: 1) identifying a primary system configured to replicate data to both a local...
8677093 Method and apparatus to manage tier information  
A method of tier management of data comprises performing a tier migration log information setup process which includes selecting an area specified by a virtual volume address and a logical volume...
8677089 Storage apparatus and storage system  
A storage apparatus includes: an associating unit that associates a first memory area in which data to be copied are stored and a second memory area of a destination storage apparatus to which the...
8677085 Virtual machine snapshotting in object storage system  
The storage system exports logical storage volumes that are provisioned as storage objects within logical storage containers. These storage objects are accessed on demand by connected computer...
8677086 System for caching data  
A data storage system includes a first storage processor including a first memory device; a second storage processor including a second memory device; and a third memory device coupled to the...
8677060 Isolation switching for backup of registered memory  
Certain embodiments described herein include a memory system having a register coupled to a host system and operable to receive address and control signals from the host system, a volatile memory...
8677090 First storage apparatus and first storage apparatus control method  
The object is to achieve a disaster recovery configuration in a short period of time. In a first storage apparatus 1P, a child-generation volume 3PB is created using a snapshot from a parent...
8671243 Isolation switching for backup memory  
Certain embodiments described herein include a memory system having a volatile memory subsystem, a non-volatile memory subsystem, a controller coupled to the non-volatile memory subsystem, and a...
8671255 Methods for synchronizing storage system data  
In accordance with one example, a method for comparing data units is disclosed comprising generating a first digest representing a first data unit stored in a first memory. A first encoded value...
8671189 Dynamic load balancing system and method thereof  
Disclosed is a dynamic load balancing system. The dynamic load balancing system includes a resource management master managing bare servers that do not execute services and having a hierarchical...
8671256 Migrating contents of a memory on a virtual machine  
A system and computer program product for migrating contents of a memory on a virtual machine. The system includes a source virtual machine executing on a host system, the source virtual machine...
8667236 Host based write ordering for asynchronous replication  
A host write based write ordering mechanism is used so the write ordering on the secondary system is derived from the write ordering applied by the host to the primary system. In this scheme any...
8667244 Methods, systems, and apparatus to prevent memory imprinting  
In one implementation, a data set including a plurality of data values having an order is stored at a memory having a plurality of memory locations. Each data value from the data set stored a...
8667239 Assisted mainframe data de-duplication  
Data de-duplication (“de-dupe”) allows IT organizations to replace aging tape systems with disk-based backup solutions and minimize the storage allocated to backup and data protection. The...
8667248 Data storage device using metadata and mapping table to identify valid user data on non-volatile media  
A data storage device is disclosed including a non-volatile media having a first and a second plurality of physical locations, the first plurality of physical locations storing user data and the...
8667228 Memory system and method for controlling memory system  
A memory system connected to another apparatus via a data crossbar, has a first memory, a second memory that forms a dual configuration together with the first memory, a first memory controller...
8667490 Active/active storage and virtual machine mobility over asynchronous distances  
A system for providing mobility of a virtual machine between a first site and a second site of an active/active system is disclosed. For a virtual machine operating on the first site, it may be...
8667240 Method for automatically backing up digital data preserved in memory in a computer installation and data medium readable by a computer having the associated instructions stored in the memory thereof  
The invention relates to a method for automatically backing up digital data preserved in memory in a computer installation to a remote backup system accessible through the computer installation...
8667328 System and method for protecting windows system state  
A method and system for protecting computer system state in one aspect generates signatures associated with system dump data, compares the signatures with those of the previous system dump data....
8667238 Selecting an input/output tape volume cache  
For selecting an input/output tape volume cache (TVC), a history module maintains access history instances for a plurality of clusters, each cluster comprising a TVC. A request module receives an...
8667241 System for data migration from a storage tier allocated to a virtual logical volume  
In recent years, data life cycle management, in which data is relocated from, for example, a new storage sub-system to an older storage sub-system in accordance with how new the data is or the...
8667237 Deleting relations in multi-target, point-in-time-copy architectures with data deduplication  
A method for deleting a relation between a source and a target in a multi-target architecture is described. The multi-target architecture includes a source and multiple targets mapped thereto. In...
8667245 Spatial extent migration for tiered storage architecture  
Provided are techniques for migrating a first extent, determining a spatial distance between the first extent and a second extent, determining a ratio of a profiling score of the second extent to...
8661213 Method and system for frequent checkpointing  
A virtualization platform provides fault tolerance for a primary virtual machine by continuously transmitting checkpoint information of the primary virtual machine to a collector process, such as...
8661215 System and method of acquiring and copying snapshots  
Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an Nth point-in-time snapshot, which constitutes the latest point-in-time snapshot, is...
8661210 Data migration management device and method  
A management device and management method capable of improving usability of a storage system is proposed. The management device and the management method for managing data migration between...
8661219 Storage device control method and computer system  
A storage device control method for operating a logical volume to which a control command cannot be issued directly from a host computer is provided. The host computer manages a storage device....
8661214 Storage system and data migration processing control method  
The present invention appropriately processes a write command issued during data migration processing, and completes the data migration processing promptly. A copy control part 7, in a case where...
8661211 Method for migrating contents of a memory on a virtual machine  
A method for migrating contents of a memory on a virtual machine. The method includes computer instructions for establishing communication from a source virtual machine to a target virtual...
8661212 Storage system  
A storage system 300a that has a volume, manages the volume as a plurality of logical volumes, and can operate as a plurality of logical storage systems having at least one logical volume. The...
8656126 Managing snapshots of virtual server  
Configuration information and a system log are acquired for each of virtual servers running on an external computer, and the acquired system logs are analyzed. Relation information on the relation...
8655847 Mirroring data changes in a database system  
A method for mirroring one or more data changes from a first database server to one or more second database servers. The method includes intercepting one or more operations that make one or more...
8656123 Snapshot preserved data cloning  
A method and device for cloning snapshots is provided. A new snapshot can be created by cloning an existing snapshot. The clone snapshot may use the preserved data of the existing snapshot,...