05140592 is referenced by 101 patents and cites 40 patents.

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 controllers work together such that if one of the second level controllers fails, the routing between the first level controllers and the memory devices is switched to a properly functioning second level controller without the need to involve the computer in the rerouting process. The logical configuration of the memory devices remain constant. The invention also includes switching circuitry which permits a functioning second level controller to assume control of a group of memory devices formerly primarily contolled by the failed second level controller. In addition, the invention provides error check and correction as well as mass storage device configuration circuitry.

Title
Disk array system
Application Number
488749
Publication Number
5140592
Application Date
October 22, 1990
Publication Date
August 18, 1992
Inventor
Kumar Gajjar
San Jose
CA, US
Joseph S Glider
Palo Alto
CA, US
Larry P Henson
Santa Clara
CA, US
David H Jaffe
Belmont
CA, US
David T Powers
Morgan Hill
CA, US
Robert S Koontz
Atherton
CA, US
Thomas E Idleman
Santa Clara
CA, US
Agent
Townsend & Townsend
Assignee
SF2 Corporation
CA, US
IPC
G06F 11/20
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