Patent
1992-12-18
1998-11-10
Beausoliel, Jr., Robert W.
39518317, G06F 1100
Patent
active
058357033
ABSTRACT:
In an apparatus and method for diagnosing a plurality of disk drives in at least one disk array device, including a disk array control unit which is connected in parallel with a plurality of data storage disk drives, a redundant disk drive and a spare storage disk drive, and which is adapted to access the plurality of disk drives in parallel in response to an access from a host device. The disk array control unit accesses the spare storage disk drive as well as the plurality of data storage disk drives and the redundant storage disk drive, in accordance with a data transfer requirement from the host device, thereby diagnosing the storage disk drive, when the data transfer requirement represents a read transfer or write transfer.
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Beausoliel, Jr. Robert W.
Fujitsu Limited
Palys Joseph E.
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