Multi-array disk apparatus

Details Multi-array disk apparatus Multi-array disk apparatus

1997-09-03

2000-03-14

Wright, Norman Michael

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

714 30, 714 42, 714 47, G06F 1100

Patent

active

060386819

ABSTRACT:
A multi-array disk apparatus includes first and second logical drives, a first array controller, a second array controller, and interface control circuits. Each of the first and second logical drives has two logical structure disks constituting a pair. The first array controller controls the first logical drive. The second array controller controls the second logical drive. When a fault occurs in the other of the first and second array controllers, the interface control circuits bus-connect one of the first and second array controller in which no fault occurs to the logical structure disk connected to the other of the first and second array controller in which the fault occurs.

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