Issue/Symptom/Question

A RMAN database oracle backups is not completing

Applies To

RMAN Oracle Backups

Linux

Resolution/Fix/Answer

When a RMAN backup starts it writes a lock file to /tmp called backup-database.63229-$SID 
($SID is replace by the actual database i.e. backup-database.63229-PROD_H)

If the backup is killed for some reason while running, it will leave this lock file in the /tmp directory and so when it tries to start another backup for the database it fails.

If this happens again, and the backups will not start, just remove the file in /tmp.