A computer system which has a plurality of computers and a storage device subsystem
connected to the plurality of computers. The storage device subsystem has a plurality
of storage devices and a plurality of interfaces, through which the subsystem is
connected to the computers. One of the plurality of computers has a management
means for holding therein data indicative of the storage devices and a connection
relationship between the computers and storage device subsystem. Each computer,
when wanting a new device, informs the management means of its capacity and type.
The management means receives its notification and selects one of the storage devices
which satisfies the request. And the management means instructs the storage device
subsystem to set predetermined data in such a manner that the computer can access
the selected device. The management means also returns predetermined data to the
computer as a device assignment requester, the assignment requester computer modifies
setting thereof to allow the computer in question can use the assigned device.
