Database Error Messages

ORA-16871

fast-start failover target switch is not supported

Cause

Automatic switch of the fast-start failover target was not possible because the release of the observer was earlier than 12.2. Consequently, the fast-start failover target switch will not occur even though the primary database has more than one fast-start failover target configured.


Action

Upgrade the Oracle client home to release 12.2 and then stop and restart the observer using the DGMGRL CLI in that Oracle home.