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Matosevich
Rivka M. Matosevich, Zichron-Ya'Acov IL
| Patent application number | Description | Published |
|---|---|---|
| 20120089795 | MULTIPLE INCREMENTAL VIRTUAL COPIES - Provided are techniques for, in response to establishing each incremental virtual copy from a source to a target, creating a target change recording structure for the target. While performing destage to a source data block at the source, it is determined that there is at least one incremental virtual copy target for this source data block. For each incremental virtual copy relationship where the source data block is newer than the incremental virtual copy relationship and an indicator is set in a target inheritance structure on the target for a corresponding target data block, the source data block is copied to each corresponding target data block, and an indicator is set in each target change recording structure on each target for the target data block corresponding to the source data block being destaged. | 04-12-2012 |
Rivka M. Matosevich, Tel Aviv IL
| Patent application number | Description | Published |
|---|---|---|
| 20120221823 | MULTIPLE INCREMENTAL VIRTUAL COPIES - Provided are techniques for, in response to establishing each incremental virtual copy from a source to a target, creating a target change recording structure for the target. While performing destage to a source data block at the source, it is determined that there is at least one incremental virtual copy target for this source data block. For each incremental virtual copy relationship where the source data block is newer than the incremental virtual copy relationship and an indicator is set in a target inheritance structure on the target for a corresponding target data block, the source data block is copied to each corresponding target data block, and an indicator is set in each target change recording structure on each target for the target data block corresponding to the source data block being destaged. | 08-30-2012 |
Rivka M. Matosevich, Zikhron Ya'Akov IL
| Patent application number | Description | Published |
|---|---|---|
| 20120233121 | DELETING RELATIONS BETWEEN SOURCES AND SPACE-EFFICIENT TARGETS IN MULTI-TARGET ARCHITECTURES - 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 space-efficient (SE) targets mapped thereto. In one embodiment, such a method includes initially identifying a relation for deletion from the multi-target architecture. A space-efficient (SE) target associated with the relation is then identified. A mapping structure maps data in logical tracks of the SE target to physical tracks of a repository. The method then identifies a sibling SE target that inherits data from the SE target. Once the SE target and the sibling SE target are identified, the method modifies the mapping structure to map the data in the physical tracks of the repository to the logical tracks of the sibling SE target. The relation is then deleted between the source and the SE target. A corresponding computer program product is also described herein. | 09-13-2012 |
Rivka Mayraz Matosevich, Zichron-Ya'Acov IL
| Patent application number | Description | Published |
|---|---|---|
| 20090187613 | ARTICLE OF MANUFACTURE AND SYSTEM FOR FAST REVERSE RESTORE - Techniques are provided for performing a copy operation. A fast reverse restore command indicating a new source and a new target is received, wherein the new source is an original target and the new target is an original source. A synchronous scan is performed on the new target. A new target structure associated with the new target is updated using a new source structure associated with the new source. Techniques are also provided for performing a copy operation in which a fast reverse restore command is received after an instant virtual copy has been performed from a new target to a new source and wherein the fast reverse restore command is performed before a background copy has been performed by the instant virtual copy. | 07-23-2009 |
| 20100145996 | Accessing Data in a Multi-Generation Database - A method for accessing data in a multi-generation database is provided. The method comprises receiving a request to access first data in the database, wherein the first data is located on a first page of the database; reading an entry corresponding to the first page to locate a first track on the first page to access a newest version of the data; acquiring a first lock to synchronize accesses to the first track; and determining that the first track stores the newest version of the data, in response to reading the entry while holding the first lock. | 06-10-2010 |
| 20100235582 | METHOD AND MECHANISM FOR DELAYING WRITING UPDATES TO A DATA CACHE - A novel and useful mechanism and method for writing data updates to a data cache subsystem of a storage controller. Updates received by the storage controller requiring storage allocation on a repository volume are delayed prior to being written to the data cache subsystem. The delay is based on the storage utilization of the repository volume. As the utilization of the repository volume increases, the cache write delay increases, thereby limiting the possibility that there will still be any updates in the data cache subsystem waiting to be destaged to the repository volume when the repository volume is fully utilized. When the repository volume is fully utilized all writes to the data cache of updates that will cause destage of tracks in the repository volume are stopped, thereby causing an infinite delay. | 09-16-2010 |
| 20110047343 | DATA STORAGE SYSTEM FOR FAST REVERSE RESTORE - Techniques are provided for performing a copy operation. A fast reverse restore command indicating a new source and a new target is received, wherein the new source is an original target and the new target is an original source. A synchronous scan is performed on the new target. A new target structure associated with the new target is updated using a new source structure associated with the new source. Techniques are also provided for performing a copy operation in which a fast reverse restore command is received after an instant virtual copy has been performed from a new target to a new source and wherein the fast reverse restore command is performed before a background copy has been performed by the instant virtual copy. | 02-24-2011 |
Rivka Mayraz Matosevich, Zikhron Ya'Akov IL
| Patent application number | Description | Published |
|---|---|---|
| 20120233136 | DELETING RELATIONS BETWEEN SOURCES AND SPACE-EFFICIENT TARGETS IN MULTI-TARGET ARCHITECTURES - 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 space-efficient (SE) targets mapped thereto. In one embodiment, such a method includes initially identifying a relation for deletion from the multi-target architecture. A space-efficient (SE) target associated with the relation is then identified. A mapping structure maps data in logical tracks of the SE target to physical tracks of a repository. The method then identifies a sibling SE target that inherits data from the SE target. Once the SE target and the sibling SE target are identified, the method modifies the mapping structure to map the data in the physical tracks of the repository to the logical tracks of the sibling SE target. The relation is then deleted between the source and the SE target. | 09-13-2012 |