There're 2 procedures of restoring OCR and voting disk in this post. They are: Restore OCR and Voting Disk For 12c Clusterware Restore OCR and… Read More »How to Restore OCR and Voting Disk
SPFILE in DB_UNKNOWN When I tried to restore SPFILE to the default location at nomount state, I found that SPFILE was restored to a DB_UNKNOWN… Read More »How to Resolve SPFILE in DB_UNKNOWN