| 摘要 |
PROBLEM TO BE SOLVED: To take over a service without causing any split plain by detecting the obstacle of a virtual machine under the consideration of the slow-down state of a virtual machine. SOLUTION: In server computers 10-1 and 10-2, VM11-1 and 11-2 are respectively arranged. A slowdown detection mechanism 122-1 arranged on a VMM12-1 of the server computer 10-1 monitors the update circumstances by the VM11-1 to a periodic update area in a virtualized memory area (a shared management area 121-1 assigned to which) to be used by the VM11-1 in order to detect the slow-down state of the VM11-1. A state notification/monitoring mechanism 123-1 arranged on the VMM12-1 notifies the state notification/monitoring mechanism 123-2 arranged on the VMM12-2 of the server computer 10-2 of the state of the VM11-1 detected by the detection mechanism 122-1. Then, a cluster control mechanism 13-2 makes the VM11-2 take over a service provided by the VM11-1. COPYRIGHT: (C)2009,JPO&INPIT
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