Disk control system in which spare disk and master disks are dyn

Details Disk control system in which spare disk and master disks are dyn Disk control system in which spare disk and master disks are dyn

1991-11-27

1994-06-14

Robertson, David L.

G06F 1310

Patent

active

053218264

ABSTRACT:
A magnetic disk control system includes a table for storing assignment information for assigning one of said first and second magnetic disk drives as a master disk for data I/O operations and the other as a spare disk for backing up said master disk, a copying section for executing data copy from the master disk to the spare disk, assignment information updating section for, when the data copying unit complete data copy from the master disk to the spare disk, exchanging the assignment information on the magnetic disk drive as a data copy source and the magnetic disk drive as a copy destination, and a operation check section for executing an operation check for maintenance for the disk drive newly assigned as the spare disk.

REFERENCES:
patent: 5051887 (1991-09-01), Berger et al.
patent: 5247618 (1993-09-01), Davis et al.

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