Patent ID: 6976140

Claim:
A computer system, comprising: a cluster-structured storage system having a plurality of storage systems; and a computer connected to said cluster-structured storage system, wherein each of said plurality of storage systems includes a memory in which information on a storage area contained in the storage system is stored, wherein a first storage system of said plurality of storage systems operating to acquire information in the memory contained in a second storage system of said plurality of storage systems based on an instruction of said computer and to transfer data from a storage area contained in the first storage system to a storage area contained in said second storage system based on said acquired information, wherein said first storage system and said second storage system are connected via an inter-cluster connecting mechanism directly, wherein said first storage system acquires said acquired information from said second storage system via said inter-cluster connecting mechanism, and wherein said first storage system sends data to said second storage system via said inter-cluster connecting mechanism.