Storage device for monitoring the status of host devices and...

Details Storage device for monitoring the status of host devices and... Storage device for monitoring the status of host devices and...

2007-07-03

2007-07-03

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S010000, C710S036000

Reexamination Certificate

active

10868917

ABSTRACT:
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 device2is utilized by numerous servers1A through1C. The server1A and server1B form a failover cluster. The status detection part 5 judges whether or not an event observed from the server1A or1B corresponds to a specified event (link down or the like). In cases where such a specified event is observed, the status detection part5detects the occurrence of failover. In accordance with the detection of the occurrence of failover, the priority control part6sets 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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