Troubleshooting Problems During a Switchover Operation

If the switchover fails due to problems with the configuration, then the broker reports any problems it encounters in the alert log files or in the broker log files.

See Sources of Diagnostic Information for more information about log files. If the reported problems can be corrected, you can retry the switchover operation and it will usually succeed. If the reported problems cannot be corrected or the switchover operation fails even after correcting the reported problems, then you can choose another database for the switchover or restore the configuration to its pre-switchover state and then retry the switchover.

If fast-start failover is enabled, the broker does not allow switchover to any standby database except to the target standby database. In addition, switchover to the target standby database is allowed only when the value of the FS_FAILOVER_STATUS column in the V$DATABASE view on the target standby database is either READY or SUSPENDED.

See Also:

When Fast-Start Failover Is Enabled and the Observer Is Running