Patent ID: 7003556

Claim:
A storage system, comprising: a storage unit storing therein file data; a plurality of file servers effecting file processing on the storage unit in response to a received request; a file server administrating node unitarily administrating transfer processing for transferring a client request received via an external network as said received request to one of the plurality of file servers and reply processing for sending a reply message in response to the received client request to a client corresponding to the client request; an internal network interconnecting the storage unit, the plurality of file servers and the file server administrating node so that communication is effected in the internal network; a header offset value analyzing unit analyzing the client request so as to calculate a header offset value indicative of a position of a boundary between a header portion and a substantial file data portion; and a header offset value adding unit adding the header offset value obtained by the header offset value analyzing unit to the client request which is transferred to one of the file servers.