Patent ID: 8799525

Claim:
A management computer for managing a computer system comprising: a high-level connecting device coupled to the management computer; and an integral apparatus coupled to the high-level connecting device, wherein the integral apparatus comprises: a computer for executing various processing sequences according to implemented application software; a storage apparatus from or to which the computer reads or writes data; and a low-level connecting device for connecting the computer, the storage apparatus and the high-level connecting device, wherein the management computer stores integral apparatus connection information indicating a connection between integral apparatuses and is configured to: obtain an integral apparatus internal configuration information of a new integral apparatus to the computer system, the integral apparatus internal configuration information indicating a configuration of the integral apparatus; update the integral apparatus connection information by referring to the integral apparatus internal configuration information; design a migration plan by referring to the integral apparatus connection information, the migration plan indicating that a virtual machine operated on the computer and a storage area of the storage apparatus are to be introduced into or removed from the computer system; and output the migration plan, wherein, if designated by a latency policy, the migration plan is designed such that the virtual machine is located on the same integral apparatus as that to which the storage area is migrated.