| 摘要 |
PROBLEM TO BE SOLVED: To provide a high availability system that uses a cluster to perform backup and recovery using the latest data without stopping the cluster by organically connecting the two technologies of the cluster and the backup. SOLUTION: The high availability system is provided with: an active server 101; a cluster 103 including a backup server 102 for always storing up-to-date data in synchronization with the active server; and a virtual server 122 for synchronizing the data with the active server 102. The synchronization between backup server 102 and the virtual server 122 is interlocked with synchronization between the active server 101 and the backup server 102. The virtual server 122 is backed up while the synchronizing function between the backup server 102 and the active server 101 and the synchronizing function between the virtual server 122 and the backup server 102 are stopped. COPYRIGHT: (C)2011,JPO&INPIT
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