| 摘要 |
An object of the present invention is to integrally manage disk storage apparatuses through virtualization. Some physical storage apparatuses (14) connected to a host computer (10) via a communication network (12) are virtualized with a virtual switch (18), a control unit (20), and a virtual device (22). The physical storage apparatus specifies a command when receiving the command from the host computer (10), and accesses, if the command access has been made to its own physical storage apparatus, a real disk via the virtual control unit (20) and virtual device (22), and executes I/O processing. If the command access is not made to its own physical storage apparatus, the physical storage apparatus (14) directs the command to the transmission target via the virtual switch (18). The physical storage apparatuses (14) are integrally managed according to the command in the above described manner.
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