| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that since one service failure affects the other services and a cluster manager in a conventional manner, it is necessary to cope with for the OS of an application and a cluster manager, and versatility is poor, and there is any failure which can not be detected by a failure processing mechanism which detects S/W failure from the type of interruption. SOLUTION: This cluster system is provided with: a plurality of computers; virtual machines respectively installed in those computers; a host OS; a cluster manager; 0 or more guest OS; and a shared disk having an OS image which is accessible from each computer. The cluster manager is provided with: functions of the start/stop of each guest OS; the monitor of the status of a service; the failure restoration of a defective service; a heart beat function; and the fail over function of failure restoration using the OS image of the shared disk based on the failure detection of the other cluster manager. Also, each guest OS exclusively installed for a specific service is defined as one service for management. COPYRIGHT: (C)2008,JPO&INPIT
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