We have 3 database on Primary server and 3 standby database configured accordingly. It is physical standby dataguard setup.
Windows: Version 18.104.22.168.0 - 64bit Production.
DGMGRL configuration created separately for each database and performed the switchover testing and everything working fine.
Observer configured and did the failover test. The standby become primary and it is up and running.
Now the problem ,
The former primary is not coming up and auto reinstate failed. Manually started and mount the database, then the observer trying to do the auto reinstate, but it fails. Manual auto reinstate also failing. Autoreinstate parameter set as TRUE.
DGMGRL> show configuration
Configuration - dgconfig1
Protection Mode: MaxPerformance
sawprod_stdby - Primary database
Warning: ORA-16829: fast-start failover configuration is lagging
sawprod - (*) Physical standby database (disabled)
ORA-16661: the standby database needs to be reinstated
Fast-Start Failover: ENABLED
WARNING (status updated 2 seconds ago)
DGMGRL> reinstate database sawprod << ==================================
Reinstating database "sawprod", please wait...
Error: ORA-16653: failed to reinstate database
Reinstatement of database "sawprod" failed