Patent ID: 6792505
Filing Date: 2004-09-14
Classification: G06F

Abstract:
A controller device for coupling data between a data storage system including a plurality of disk arrays and a host computer, said controller device comprising:a first prima processor and a first random access memory coupled to said first primary processor; a first auxiliary processor including a first memory controller and a first memory coupled to said first memory controller, said first memory controller including a first interface for coupling with a second auxiliary processor including a second memory controller and an associated second memory and a second interface for coupling with said first auxiliary processor, said first memory controller including control logic for treating said first memory and said second memory as a single memory complex; at least one communications bus for communication with the plurality of disk arrays coupling said first primary process and said first auxiliary processor; and an interconnection channel separate from said communications bus extending between and coupling said first interface of said first memory controller and said second interface of said second memory controller.