ORA-16668: operation invalid on fast-start failover target database
Cause: The attempted command was not allowed on the fast-start failover target standby database when fast-start failover is currently enabled.
Action: Retry the attempted command on a database other than the fast-start failover target standby database. Alternatively, disable fast-start failover and reissue the same command to the fast-start failover target standby database.
Error Type: ORA