Message Oracle RMAN-08612 - channel string: failover to duplicate backup on device string

ERRORchannel string: failover to duplicate backup on device string
CAUSEThis is an informational message to indicate the RMAN could not successfully restore the files using the specified backups. An attempt was made to restore the datafiles/archived logs/ control file/SPFILE using a previous existing backup.
ACTIONSee accompanying additional error messages indicating the cause of the failover.