Disk array controller

Details Disk array controller Disk array controller

2006-10-10

2006-10-10

Padmanabhan, Mano (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S112000, C711S113000

Reexamination Certificate

active

07120740

ABSTRACT:
Disclosed herewith is a disk array system configured by a plurality of disk array controllers and another disk array apparatus that are operated as an integrated storage system while the system is prevented from degradation of the performance. The disk array controller is provided with a channel interface unit, a disk interface unit, a cache memory unit, a shared memory unit, a shared memory interconnection network for connecting a plurality of disk array control units to each another, and an inter-unit CM-SW for connecting a plurality of disk array control units to each another. The shared memory unit includes another disk array apparatus volume information collection unit for retaining volume information of another disk array apparatus while the inter-unit CM-SW includes a protocol translation interface.

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