| 摘要 |
PROBLEM TO BE SOLVED: To suitably allocate a physical server to virtual machines. SOLUTION: Even when, in a state where a high-load physical server to be a physical server (host) whose load factor exceeds a load factor threshold is allocated to a plurality of virtual machines (guests), allocation to virtual machines other than a high-load virtual machine to be a virtual machine having the highest load out of the plurality of allocated virtual machines is changed from the high-load physical server to another physical server other than the high-load physical server, a resource allocation part 13 calculates the order of the plurality of virtual machines in a virtualization system 301 for virtualizing the load factor of the high-load physical machine when the load factor of the high-load physical server exceeds the load factor threshold, and changes allocation to the high-load virtual machine from the high-load physical server to a same-order physical server to be a physical server whose order of stored resource amounts out of the plurality of physical servers in the virtualization system 301 is the same as the calculated order. COPYRIGHT: (C)2011,JPO&INPIT
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