How to Resolve SPFILE in DB_UNKNOWN

Posted on
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 in ASM. Is it a bug dedicated to Oracle 10g RAC (Bug 5370663)? No, I saw it too in 12c R1 RAC restoration. Let’s reproduce the problem. First, check what […]

How RMAN Restore Database by a Backup Set

Posted on
Suppose we have restored the whole OS to the new server including Oracle software and directory structure. Our goal is to restore the database to the target server solely by a backup set for testing purpose. The content of the backup set that we copied from the source server to the target server is listed […]