1
Richard J Clifton, Sanjoy Chatterjee, John P Larson, Joseph R Richart, Cyril E Sagan: Apparatus and method for backup of a disk storage system. EMC Corporation, Robert L Dulaney, June 27, 2000: US06081875 (197 worldwide citation)

A backup system and method provides for creation of a reconciled snapshot backup image of a database while the database, residing on a disk array system, is in use by users. A backup computer running a commercial backup utility is connected between the array system and a tape storage system. While t ...


2
Thomas E Idleman, Robert S Koontz, David T Powers, David H Jaffe, Larry P Henson, Joseph S Glider, Kumar Gajjar: Disk array system. Micro Technology, Townsend and Townsend Khourie and Crew, December 28, 1993: US05274645 (131 worldwide citation)

A method and apparatus for controlling data flow between a computer and a group of memory devices arranged in a particular logical configuration. The system includes a group of first level controllers and a group of second level controllers. The first level controllers and the second level controlle ...


3
Thomas E Idleman, Robert S Koontz, David T Powers, David H Jaffe, Larry P Henson, Joseph S Glider, Kumar Gajjar: Disk array system. SF2 Corporation, Townsend & Townsend, August 18, 1992: US05140592 (101 worldwide citation)

A method and apparatus for controlling data flow between a computer and a group of memory devices arranged in a particular logical configuration. The system includes a group of first level controllers and a group of second level controllers. The first level controllers and the second level controlle ...


4
Charles D Binford, Mark A Gaertner, Steven P Denny: Method for maintaining parity-data consistency in a disk array. AT&T Global Information Solutions Company, Hyundai Electronics America, Symbios Logic, Wayne P Bailey, James M Stover, July 2, 1996: US05533190 (99 worldwide citation)

A method for assuring consistency between data and parity in a disk array system following a reset or a power failure condition which interrupts the execution of write I/O operations. The method includes the steps of: examining drive activities to identify unfinished write I/O operations due to an i ...


5
Craig Jones: Disk array apparatus and method which supports compound raid configurations and spareless hot sparing. Dellusa, Jeff Hood, James Huffman, December 26, 1995: US05479653 (96 worldwide citation)

A disk array architecture which supports compound RAID configurations and which can automatically switch between various RAID configurations in case of drive failures to prevent data loss and retain data redundancy. In the preferred embodiment, the disk array system of the present invention begins o ...


6
Naoki Watanabe, Hitoshi Kakuta, Yoshifumi Takamoto: Disk array system having adjustable parity group sizes based on storage unit capacities. Hitachi, Fay Sharpe Beall Fagan Minnich & McKee, May 19, 1998: US05754756 (91 worldwide citation)

The capacity efficiency of a disk array, when this disk array is constructed of drives of different capacities, is managed with a table so that areas of larger capacity disk drives of the disk array that would otherwise be left unused can be used for parity group storage. In this regard, at least on ...


7
Yasunori Kaneda, Takashi Oeda, Kiyoshi Honda, Naoto Matsunami, Hitoshi Akiyama, Hiroshi Arakawa, Minoru Yoshida, Ikuya Yagisawa: Array type disk system updating redundant data asynchronously with data access. Hitachi, Antonelli Terry Stout & Kraus, June 2, 1998: US05761402 (88 worldwide citation)

In a disk array system, data read out and data written anew are temporarily held as former data in a former data holding portion. When a write operation has occurred, a CPU searches the holding portion for write data, it generates update data from the new and former write data items, and it holds th ...


8
James Arthur McDonald, John Peter Herz, Mitchell Allen Altman, William Edward Smith III: Disk array system for processing and tracking the completion of I/O requests. 3Ware, Knobbe Martens Olson & Bear, August 1, 2000: US06098114 (85 worldwide citation)

A high-performance RAID system for a PC comprises a controller card which controls an array of ATA disk drives. The controller card includes an array of automated disk drive controllers, each of which controls one respective disk drive. The disk drive controllers are connected to a microcontroller b ...


9
Arakawa Takashi, Mogi Kazuhiko, Yamakami Kenji, Arai Hiroharu: Storage sub-system and its control method. Hitachi, March 16, 2001: JP2001-067187 (72 worldwide citation)

PROBLEM TO BE SOLVED: To simplify a work for optimizing arrangement by re-arrangement by the user of a disk array system or the like by changing the correspondence of a logical storage area from a physical storage area into the second physical storage area and executing re-arrangement. SOLUTION: A c ...


10
Masayuki Yamamoto, Naoto Matsunami, Jun Matsumoto, Ikuya Yagisawa, Masahiko Sato: Disk array system and method of changing the configuration of the disk array system. Hitachi, Mattingly Stanger & Malur P C, July 23, 2002: US06425049 (71 worldwide citation)

A disk array system has a disk storage group, an array controller reading/writing data of the group, a disk interface connecting unit having a plurality of ports for connection with the controller and the group, and a disk interface connection changing unit. In an array configuration information mem ...