Oracle Solution for Error ora-16651

ORA-16651: requirements not met for enabling fast-start failover

What triggered the Error:

The attempt to enable fast-start failover could not be completed because one or more requirements were not met: *- The Data Guard configuration must be in either MaxAvailability or MaxPerformance protection mode. *- The LogXptMode property for both the primary database and the fast-start failover target standby database must be set to SYNC if the configuration protection mode is set to MaxAvailability mode. *- The LogXptMode property for both the primary database and the fast-start failover target standby database must be set to ASYNC if the configuration protection mode is set to MaxPerformance mode. *- The primary database and the fast-start failover target standby database must both have flashback enabled. *- No valid target standby database was specified in the primary database FastStartFailoverTarget property prior to the attempt to enable fast-start failover, and more than one standby database exists in the Data Guard configuration.

What should we do to fix it:

Retry the command after correcting the issue: *- Set the Data Guard configuration to either MaxAvailability or MaxPerformance protection mode. *- Ensure that the LogXptMode property for both the primary database and the fast-start failover target standby database are set to SYNC if the configuration protection mode is set to MaxAvailability. *- Ensure that the LogXptMode property for both the primary database and the fast-start failover target standby database are set to ASYNC if the configuration protection mode is set to MaxPerformance. *- Ensure that both the primary database and the fast-start failover target standby database have flashback enabled. *- Set the primary database FastStartFailoverTarget property to the DB_UNIQUE_NAME value of the desired target standby database and the desired target standby database FastStartFailoverTarget property to the DB_UNIQUE_NAME value of the primary database.