Patent ID: 8214613

Claim:
A storage system comprising: a storage apparatus; a management computer to be connected to the storage apparatus; and a host computer to be connected to the storage apparatus; wherein the storage apparatus includes a plurality of volumes, including a first volume and a second volume; and wherein the first volume is recognized by the management computer and the second volume is not recognized by the management computer; wherein the management computer compares control information that is set by a user, with information the management computer has about the plurality of volumes; and if the control information is a request to the first volume, the management computer issues the request to the first volume; and if the control information is a request to the second volume, the management computer issues the request to a third volume, which is a volume other than the first volume and the second volume among the plurality of volumes of the storage apparatus, wherein the third volume is a volume that can be recognized by the management computer, so that the second volume can execute the request via the third volume.