Patent ID: 7461203

Claim:
A system comprising: a disk controller controlling data to be transmitted to or received from at least one of plurality of computers and controlling data to be read from or written to a plurality of storage areas via a Fibre Channel (FC) interface; a plurality of first disk drives each comprising a Serial ATA (SATA) interface and at least one of said plurality of storage areas, and each corresponding to a converter, said converter performing conversion of a communication interface between said FC interface of said disk controller and said SATA interface of one of said plurality of first disk drives; a basic casing comprising said disk controller; and an additional casing being capable of mounting either said plurality of first disk drives or a plurality of second disk drives, said plurality of second disk drives each comprising an FC interface; and said disk controller controlling information to be acquired from at least one disk drive mounted in said additional casing, so that a software program on at least one of said plurality of computers can cause to display interface type information, said interface type information identifying a type of interface of said at least one disk drive mounted in said additional casing.