Array controller for disk array, and method for rebuilding...

Details Array controller for disk array, and method for rebuilding... Array controller for disk array, and method for rebuilding...

2007-11-06

2007-11-06

Duncan, Marc (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130, C714S005110, C714S006130

Reexamination Certificate

active

10945261

ABSTRACT:
An array controller includes a maximum address storage unit and a data restoration unit. The maximum address storage unit stores a maximum address, which is a maximum one of the addresses of data-written areas of the disk drives of a disk array. If one of the disk drives malfunctions, the data restoration unit generates data corresponding to the malfunctioning disk drive on the basis of the data stored in the first areas of the remaining disk drives and arranges the generated data in a second area. The second area corresponds to the first areas and is part of the new disk drive used in place of the malfunctioning disk drive. The first area is an area defined between the start address of the remaining disk drives and the maximum address stored in the maximum address storage unit.

REFERENCES:
patent: 5390187 (1995-02-01), Stallmo
patent: 6098119 (2000-08-01), Surugucchi et al.
patent: 6598174 (2003-07-01), Parks et al.
patent: 6636984 (2003-10-01), McBrearty et al.
patent: 2002/0152416 (2002-10-01), Fukuda
patent: 8221217 (1996-08-01), None

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