After the offline backup of Oracle RAC database, the database remains in mounted state and does not automatically opens and the users needs to manually open the database.
In the oracle RAC environment, srvctl is used to stop and start the database.During the offline backup of the oracle RAC database, Backup Exec directs the oracle to stop and then mount the database, the oracle uses srvctl to stop and mount the database.The RMAN then performs the backup of the oracle database in mounted state.However there is no option in srvctl to open the database from the mounted state which causes the database to remain in mounted state after the offline backup.
This behaviour is by design and the user needs to manually open the database after the offline backup.
Media server: Backup Exec 2012 SP4 on Windows 2008 R2 server
Oracle Database: Oracle 11gR2 (22.214.171.124) on two nodes of OEL 6.1x64 servers.