Patent ID: 7219144

Claim:
A disk array system comprising: a plurality of storage devices in which data is stored; a storage device control unit that controls storage of data in said plurality of storage devices; a connection unit connected to said storage device control unit; a first communication control unit that is connected to said storage device control unit via said connection unit and connected onto a first network external to said own disk array system, and that transfers file data over said first network; a cache memory that temporarily stores data transferring between said first communication control unit and said storage device control unit; and a management terminal managing a plurality of resources of said disk array system and being used for acquiring information on fault occurring in said disk array system, said fault information being used to search a reason for said fault, wherein: said first communication control unit comprises: a first processor that associates file data, which is transferred over said first network, with block-form data that is stored in said storage device control unit; and a second processor configured to prevent the first processor from being directly accessed by said management terminal by transferring data to said cache memory in response to a request made by said first processor, by transferring to the first processor an instruction to collect said fault information in said disk array system based on a request sent from said management terminal, by reading information on managing said fault occurring in said disk array system from said plurality of storage devices in response to the request for the information made by said first processor, and then by transmitting the information to said first processor.