An error occurred while backing up CentOS 5.6x64:
RMAN> backup archivelog all format = '/opt/Oracle/backup/arch _ % T _ % s _ % p. Bak ';
Starting backup at 31-AUG-11
Using target database control file instead of recovery catalog
Allocated channel: ORA_DISK_1
Channel ORA_DISK_1: SID = 11 device type = DISK
RMAN-00571: ========================================================== ==============================
RMAN-00569: ==================== error message stack follows ==========================
RMAN-00571: ========================================================== ==============================
RMAN-03002: failure of backup command at 08/31/2011 23:52:25
RMAN-06059: expected archived log not found, loss of archived log compromises recoverability
ORA-19625: error identifying file/data/oracle/fast_recovery_area/DB1/archivelog/20151108_30/o%mf_%5_75t010tk _. arc
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
In this case, cross-detection is required:
RMAN> change archivelog all crosscheck;
Released channel: ORA_DISK_1
Allocated channel: ORA_DISK_1
Channel ORA_DISK_1: SID = 11 device type = DISK
Validation failed for archived log
Archived log file name =/data/oracle/fast_recovery_area/DB1/archivelog/20151108_30/o%mf_%5_75t010tk _. arc RECID = 1 STAMP = 760576935
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/logs 6_760575845.dbf RECID = 3 STAMP = 760590035
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/1277_760575845.dbf RECID = 2 STAMP = 760590032
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/4158_760575845.dbf RECID = 4 STAMP = 760590804
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/1_9_760575845.dbf RECID = 5 STAMP = 760590810
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/201710_760575845.dbf RECID = 6 STAMP = 760592700
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/1_11_760575845.dbf RECID = 7 STAMP = 760592700
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/201712_760575845.dbf RECID = 8 STAMP = 760594889
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/logs 13_760575845.dbf RECID = 9 STAMP = 760594893
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/logs 14_760575845.dbf RECID = 10 STAMP = 760594977
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/logs 15_760575845.dbf RECID = 11 STAMP = 760595061
Validation succeeded for archived log
Archived log file name =/data/oracle/db1/arch/12716_760575845.dbf RECID = 12 STAMP = 760598562
Crosschecked 12 objects
Back up again.