Crosscheck backup, the backup could be database, datafiles or controlfile including spfile.
RMAN> crosscheck backup;
using channel ORA_DISK_1
crosschecked backup piece: found to be 'EXPIRED'
backup piece handle=/tmp/database_backups/07npvr1c_1_1.bak RECID=1 STAMP=799009837
crosschecked backup piece: found to be 'EXPIRED'
backup piece handle=/tmp/database_backups/08npvr5r_1_1.bak RECID=2 STAMP=799009979
crosschecked backup piece: found to be 'EXPIRED'
backup piece handle=/tmp/database_backups/09npvr60_1_1.bak RECID=3 STAMP=799009984
crosschecked backup piece: found to be 'EXPIRED'
backup piece handle=/tmp/database_backups/0anpvr62_1_1.bak RECID=4 STAMP=799009989
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=+DATA/primdb/backupset/2012_12_17/nnndf0_tag20121217t113005_0.1094.802265461 RECID=5 STAMP=802265460
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=+DATA/primdb/autobackup/2012_12_17/s_802265992.1095.802266029 RECID=6 STAMP=802266027
Crosschecked 6 objects
Delete all kinds of backup which are marked as expired.
RMAN> delete expired backup;
using channel ORA_DISK_1
List of Backup Pieces
BP Key BS Key Pc# Cp# Status Device Type Piece Name
------- ------- --- --- ----------- ----------- ----------
1 1 1 1 EXPIRED DISK /tmp/database_backups/07npvr1c_1_1.bak
2 2 1 1 EXPIRED DISK /tmp/database_backups/08npvr5r_1_1.bak
3 3 1 1 EXPIRED DISK /tmp/database_backups/09npvr60_1_1.bak
4 4 1 1 EXPIRED DISK /tmp/database_backups/0anpvr62_1_1.bak
Do you really want to delete the above objects (enter YES or NO)? yes
deleted backup piece
backup piece handle=/tmp/database_backups/07npvr1c_1_1.bak RECID=1 STAMP=799009837
deleted backup piece
backup piece handle=/tmp/database_backups/08npvr5r_1_1.bak RECID=2 STAMP=799009979
deleted backup piece
backup piece handle=/tmp/database_backups/09npvr60_1_1.bak RECID=3 STAMP=799009984
deleted backup piece
backup piece handle=/tmp/database_backups/0anpvr62_1_1.bak RECID=4 STAMP=799009989
Deleted 4 EXPIRED objects
Crosscheck copy, the copy could be database image copy, controfilecopy, archivelog or datafiles.
RMAN> crosscheck copy;
released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=133 instance=primdb1 device type=DISK
specification does not match any datafile copy in the repository
validation failed for control file copy
control file copy file name=/tmp/standby.ctl RECID=15 STAMP=799009657
validation failed for control file copy
control file copy file name=/tmp/standbycontrolfile.ctl RECID=2 STAMP=795098423
validation succeeded for archived log
archived log file name=+DATA/primdb/archivelog/2012_10_30/thread_1_seq_24.947.798044585 RECID=58 STAMP=798044592
validation succeeded for archived log
archived log file name=+DATA/primdb/archivelog/2012_10_30/thread_1_seq_25.948.798044597 RECID=59 STAMP=798044597
...
validation succeeded for archived log
archived log file name=+DATA/primdb/archivelog/2013_01_24/thread_2_seq_76.1108.805564677 RECID=285 STAMP=805564680
validation succeeded for archived log
archived log file name=+DATA/primdb/archivelog/2013_01_24/thread_2_seq_77.1109.805564681 RECID=286 STAMP=805564682
Crosschecked 119 objects
Delete all kinds of copy which are marked as expired.
RMAN> delete expired copy;
released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=133 instance=primdb1 device type=DISK
specification does not match any datafile copy in the repository
specification does not match any archived log in the repository
List of Control File Copies
===========================
Key S Completion Time Ckp SCN Ckp Time
------- - --------------- ---------- ---------------
15 X 10-NOV-12 2866404 10-NOV-12
Name: /tmp/standby.ctl
Tag: TAG20121110T190733
2 X 27-SEP-12 1644990 27-SEP-12
Name: /tmp/standbycontrolfile.ctl
Tag: TAG20120927T124020
Do you really want to delete the above objects (enter YES or NO)? yes
deleted control file copy
control file copy file name=/tmp/standby.ctl RECID=15 STAMP=799009657
deleted control file copy
control file copy file name=/tmp/standbycontrolfile.ctl RECID=2 STAMP=795098423
Deleted 2 EXPIRED objects