| 摘要 |
By using resource information of a physical server and a virtual server and capacity information of the physical server, a virtual server system and a physical server selecting method extract a physical server in which the utilization rate of resources is more than a high load threshold value or lower than a low load threshold value; with respect to moving candidates comprised of all combinations of a plurality of operating virtual servers in the extracted physical servers and physical servers to where the virtual servers move, seek an evaluation value of an index to level the utilization rate of resources for each server after virtual servers move; determine virtual servers are to be moved, original physical servers and destination physical servers to where virtual servers are to be moved in accordance with the evaluation value; and move the determined virtual servers to the destination physical servers.
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