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The failover process, including script processing, can be tested at any time. To force unavailability, disconnect the network cable from a monitored machine, wait for the Time to Fail counter to decrease to zero and failover begins. To avoid the countdown delay, highlight the monitored machine name in the Failover Control Center window and select Failover.
If Manual Intervention is enabled, the Failover Control Center will prompt you when a failure occurs.
If the Failover Control Center is not running at the time the failure occurs, the manual intervention dialog box will appear the next time the Failover Control Center is started.
When a failure occurs, an alert is forwarded to the Linux system log. You can then start the Failover Control Center and respond to the manual intervention prompt.
If SNMP is installed and configured, an SNMP trap is also generated. When using a third-party SNMP manager, an e-mail or page can be generated to notify you of the failure.
Files that were open or being accessed at the time of failover will generate Stale NFS file handle error messages. Remount the NFS export to correct this error.
Click Cancel to abort the failover process. If necessary, you can initiate failover later from the Failover Control Center. Click OK to proceed with failover.
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