System having storage subsystems and a link coupling the...

Details System having storage subsystems and a link coupling the... System having storage subsystems and a link coupling the...

2006-04-25

2006-04-25

Ray, Gopal C. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus expansion or extension

C711S114000, C711S141000, C370S363000

Reexamination Certificate

active

07035952

ABSTRACT:
A system includes plural storage subsystems each having a controller and an expander to couple to storage devices. The controller accesses the storage devices through the expander, and the expander has interfaces for coupling to the storage devices. The system further includes an intercontroller link to connect expanders in two storage subsystems to enable the controller in one of the storage subsystems to communicate with the controller in another one of the storage subsystems through the expanders and the intercontroller link.

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