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ExpressCluster X 2.0 for Windows Reference Guide - Nec

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Section II Resource details<br />

Monitoring starts after a cluster is started<br />

or monitoring is resumed<br />

1st Retry 2nd Retry<br />

Main<br />

monitoring<br />

process<br />

Sub<br />

monitoring<br />

process<br />

No<br />

error<br />

30sec<br />

Monitoring<br />

error<br />

Error<br />

Monitoring time (no error)<br />

Monitoring time (error)<br />

Monitor interval<br />

Monitor resources<br />

When an error occurs, it is detected at the next monitoring. If recovery cannot be achieved within<br />

the monitor retries, the failover is started <strong>for</strong> the recovery target.<br />

When an error is detected (without monitor retry settings)<br />

Examples of behavior when the following values are set.<br />

<br />

Monitor Interval 30 sec<br />

Monitor Timeout 60 sec<br />

Monitor Retry Count 0 time<br />

<br />

Recovery Target group<br />

Reactivation Threshold 0 time<br />

Failover Threshold 1 time<br />

Final Action None<br />

30sec<br />

Error<br />

Error<br />

30sec 30sec<br />

Execute failover <strong>for</strong> the target<br />

to be recovered.<br />

Recovery operation<br />

Monitoring starts<br />

Monitoring ends<br />

...<br />

Time<br />

555

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