Disk drive memory

Details Disk drive memory Disk drive memory

G - Physics

06

F

354/224, 352/20.

G06F 11/20 (2006.01) G06F 11/10 (2006.01) G11B 5/012 (2006.01) G11B 20/18 (2006.01)

Patent

CA 1322409

DISK DRIVE MEMORY ABSTRACT The disk drive memory of the present invention uses a large plurality of small form factor disk drives to implement an inexpensive, high performance, high reliability disk drive memory that emulates the format and capability of large form factor disk drives. The plurality of disk drives are switchably interconnectable to form parity groups of N+1 parallel connected disk drives to store data thereon. The N+1 disk drives are used to store the N segments of each data word plus a parity segment. In addition, a pool of backup disk drives is maintained to automatically substitute a replacement disk drive for a disk drive in a parity group that fails during operation.

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