Patent ID: 7640415

Claim:
A storage system having a first computer, a second computer connected to the first computer via a network, and a storage device system, wherein the storage device system is accessed by the second computer and has a plurality of storage areas of the storage device system, in the storage system, the second computer comprising: a plurality of storage areas of the second computer, which are recognized by the first computer; and a plurality of target devices of the second computer, which are recognized by the first computer; wherein the plurality of target devices of the second computer at least include target device A of the second computer, which is exclusively mounted on any of the plurality of storage areas of the second computer including storage area A of the second computer, the second computer further comprising: a receiving unit that receives a first access request to access the storage area A of the second computer among the plurality of storage areas of the second computer; a target device identification module that identifies the target device A of the second computer from among the plurality of target devices of the second computer, in response to the first access request; a mounting module that exclusively mounts the identified target device A of the second computer on the storage area A of the second computer; and a transmission unit that transmits to the storage device system a second access request to identify a storage area A of the storage device system among the plurality of storage areas of the storage device system, which corresponds to the storage area A of the second computer; and the storage device system comprising: one or a plurality of physical storage devices forming the plurality of storage areas of the storage device system; a plurality of target devices of the storage device system for which one storage area of the storage device system among the plurality of storage areas of the storage device system, is allocated; a receiving unit that receives the second access request; and an allocation change module that allocates the area A of the storage device system to a target device of the storage device system, which corresponds to the target device A of the second computer according to the second access request.