| 摘要 |
The present invention observes the status on the server side from the storage device side, and controls the processing priority in accordance with the server status. The storage device 2 is utilized by numerous servers 1 A through 1 C. The server 1 A and server 1 B form a failover cluster. The status detection part 5 judges whether or not an event observed from the server 1 A or 1 B corresponds to a specified event (link down or the like). In cases where such a specified event is observed, the status detection part 5 detects the occurrence of failover. In accordance with the detection of the occurrence of failover, the priority control part 6 sets the processing priority of the failover destination server at a priority that is higher than the ordinary processing priority. When the preset failover time has elapsed, the priority during failover is returned to the ordinary priority.
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