Disk control device and control method therefor

Details Disk control device and control method therefor Disk control device and control method therefor

2005-11-01

2005-11-01

Shin, Christopher B. (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

C710S052000, C710S074000, C711S004000, C711S111000, C711S118000, C711S154000, C714S006130

Reexamination Certificate

active

06961788

ABSTRACT:
A disk control device of the present invention comprises a plurality of disk control units. Each disk control unit includes: at least one channel controller having an interface to a host computer; at least one disk controller having an interface to a disk device; and an internal coupling for connecting the channel controller, the disk controller, and a cache memory for temporarily storing data to be written to or read from the disk device. The disk control device further comprises: a first coupling unit for connecting the internal coupling of each disk control unit to read or write data within the disk control device; and a second coupling unit for connecting the internal coupling of each disk control unit to transfer data between a plurality of the disk control devices.

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