Patent ID: 6868438
Filing Date: 2005-03-15
Classification: H04L

Abstract:
1. A storage system, comprising: a plurality of disk control clusters each including a plurality of channel interface units for interfacing with host computers, a plurality of disk interface units for interfacing with disk drives, and local shared memory units for storing data to be read out of or written to said disk drives and control information about transfer of said data and management information of said disk drives, said plurality of disk control clusters implementing the data read/write operation in response to a data read/write request from one of said host computers with said channel interface units to transfer data between said one of said host computers and said local shared memory units, and with said disk interface units to transfer data between said local shared memory units and said disk drives; and global shared memory units for storing management information of said disk control clusters, wherein said disk control clusters are connected with each other by an interconnection, and said global shared memory units are connected to said interconnection.