Patent ID: 6957303
Filing Date: 2005-10-18
Classification: G06F

Abstract:
1. A storage systemcomprising: a plurality of protocol transformation units, each having an interface with external equipment, each being configured to transform one of a read and a write protocol of data to be exchanged with the external equipment into an internal protocol used in the storage system; a plurality of data caching control units, each having a cache memory for storing data to be one of read from and written into the external equipment, and a function for controlling the cache memory; an interconnection configured to connect the plurality of protocol transformation units and the plurality of data caching control units, wherein the plurality of data caching control units are divided into a plurality of control clusters, and wherein each cache memory is controlled only in its corresponding control cluster independently; and a system management unit configured to manage the plurality of protocol transformation units and the plurality of control clusters intearallv as one system, wherein the interconnection is divided to include a first interconnection for transferring data to be one of read from and written in the external equipment, and a second interconnection for transferring control information used to manage the storage system, wherein the system management unit is connected to the second interconnection.