| Patent Number |
Title Of Patent |
Date Issued |
| 7337286 |
Storage control system for restoring a remote data copy |
February 26, 2008 |
| A method and system for retrieving data that is stored on a backup or secondary storage system located at a remote location to a local storage system. Restoring of backup data involves the transferring of a point-in-time copy of primary system data from a secondary storage system to |
| 7177980 |
Cache storage system and method |
February 13, 2007 |
| A cache storage system and method are provided for saving storage space in a cache, the system and method for use in a data storage system having multiple storage devices and multiple virtual addresses, each virtual address having a data object associated therewith. Each data object is |
| 7139874 |
System and method for providing client-directed staging to improve non-sequential access perform |
November 21, 2006 |
| A client-directed pre-stage operation of a cache memory used to access data blocks from a mass data storage device attached to a host computer through a channel control processor is provided by a method and apparatus comprising a channel control processor for retrieving data blocks from |
| 6912629 |
System and method for restoring data from secondary volume to primary volume in a data storage s |
June 28, 2005 |
| A method and system for retrieving data that is stored on a backup or secondary storage system located at a remote location to a local storage system. Restoring of backup data involves the transferring of a point-in-time copy of primary system data from a secondary storage system to |
| 6901414 |
Method and system of storing a main data file and deltas in a storage device for determining new |
May 31, 2005 |
| A storage system and method for storing delta difference data indicative of the differences between new data and old data. A data transferring unit has copies of old data and new data. The data transferring unit compares the new data with the old data to determine delta difference data |
| 6834325 |
System and method for providing client-directed staging to improve non-sequential access perform |
December 21, 2004 |
| A client-directed pre-stage operation of a cache memory used to access data blocks from a mass data storage device attached to a host computer through a channel control processor is provided by a method and apparatus comprising a channel control processor for retrieving data blocks from |
| 6751714 |
Systems and methods for relocation of compressed data tracks |
June 15, 2004 |
| Systems and methods are provided to backup, restore and relocate compressed data images, e.g., DASD compressed tracks, associated with virtual storage volumes. A compressed track image of the data is first stored in a storage volume. The data derives from a connected host connected with |
| 6643671 |
System and method for synchronizing a data copy using an accumulation remote copy trio consisten |
November 4, 2003 |
| A system and method for synchronizing a data copy include in one embodiment first and second remote copy trios, each with source, target, and secondary volumes. Source volumes store initial data files, execute write commands to generate updated data files, and generate records of the wri |
| 6535967 |
Method and apparatus for transferring data between a primary storage system and a secondary stor |
March 18, 2003 |
| A method and apparatus for transferring data from a first storage system to a second storage system in which the first storage system includes a first plurality of storage devices and the second storage system includes a second plurality of storage devices. Data is transferred using a pa |
| 6457109 |
Method and apparatus for copying data from one storage system to another storage system |
September 24, 2002 |
| A method and apparatus in a data processing system for copying data. A request is received to copy data from a first storage system to second storage system, wherein the request identifies a source volume on the first storage system and a target volume on the second storage system and |
| 6446176 |
Method and system for transferring data between primary storage and secondary storage using a br |
September 3, 2002 |
| A method and system for transferring data from a primary storage system to a secondary storage system in which the primary storage system includes primary storage volumes and a primary bridge volume and the secondary storage system includes secondary storage volumes and a secondary bridg |
| 6446175 |
Storing and retrieving data on tape backup system located at remote storage system site |
September 3, 2002 |
| A storage control system and method for storing and retrieving data to and from a tape backup system that is located remotely from a primary host system. The primary system is coupled to a remote storage system for remote copy applications. The tape backup system is coupled to the remote |
| 6434683 |
Method and system for transferring delta difference data to a storage device |
August 13, 2002 |
| A method and system for transferring difference data (delta) between new and old data from a data transferring unit to a storage device having a copy of the old data for enabling the storage device to determine the new data based on the old data and the transferred difference data and th |
| 6345338 |
Adapting resource use to improve performance in a caching memory system |
February 5, 2002 |
| A memory system, and a method for controlling prestaging activities based upon the availability of resources within the memory system. Prestage requests are stored in a shared memory accessible to a resource controller and one or more memory controllers. When the resource controller |
| 6185659 |
Adapting resource use to improve performance in a caching memory system |
February 6, 2001 |
| A memory system, and a method for controlling prestaging activities based upon the availability of resources within the memory system. Prestage requests are stored in a shared memory accessible to a resource controller and one or more memory controllers. When the resource controller |
