Patent ID: 7523258

Claim:
A storage system, comprising: a controller, coupled to at least one information processing device, and controlling transfer of data sent from said at least one information processing device to a plurality of storage regions; a data line having a serial interface which is a different type from a Serial Advanced Technology Attachment (SATA) interface and coupled to said controller and being used to relay data from/to said controller; at least one of first disk drives each having said serial interface and having some of said storage regions; at least one of second disk drives each having said SATA interface and having some of said storage regions; at least one of first disk drive units coupled to said data line and each having one of said first disk drives; at least one of second disk drive units coupled to said data line and each having one of said second disk drives; at least one of converters each being in one of said second disk drive units and converting between said serial interface and said SATA interface; a first housing having said first disk drive units and said second disk drive units; and a rack having said first housing and a second housing, said first housing and said second housing being stacked.