I am trying to enable a backupset. This backupset physically exists on disk along with other backupsets. I am issuing following command which results in a error:
RMAN> change backupset 4882 available;
using channel ORA_DISK_1
using channel ORA_DISK_2
using channel ORA_DISK_3
using channel ORA_DISK_4
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of available command at 07/24/2020 14:37:16
RMAN-06160: no backup pieces found for backup set key: 4882
RMAN> list backupset 4882;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of list command at 07/24/2020 17:39:01
RMAN-06160: no backup pieces found for backup set key: 4882
RMAN>report obsolete;
Backup Set 4872 17-FEB-20
Backup Piece 4872 17-FEB-20 /oracle/app/oracle/fast_recovery_area/cc/cc/90223CE92F61074BE0536A4E110AC491/backupset/2020_02_17/o1_mf_nnnd1_DAILY_IUB_h4l_.bkp
Backup Set 4898 22-JUL-20
Backup Piece 4898 22-JUL-20
/oracle/app/oracle/fast_recovery_area/cc/cc/backupset/2020_07_22/o1_mf_nnndf_TAG20200722T233833_hkjjt55t_.bkp
Backup Set 4899 22-JUL-20
Backup Piece 4899 22-JUL-20 /oracle/app/oracle/fast_recovery_area/cc/cc/backupset/2020_07_22/o1_mf_nnndf_TAG20200722T233833_hkjjtool_.bkp
RMAN> list backup summary
4881 B A A DISK 17-FEB-20 1 1 YES
ARC_DAILY_IUB
4883 B F A DISK 21-FEB-20 1 1 NO
RMAN> validate backupset 4882;
Starting validate at 24-JUL-20
using channel ORA_DISK_1
using channel ORA_DISK_2
using channel ORA_DISK_3
using channel ORA_DISK_4
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of validate command at 07/24/2020 17:50:56
RMAN-06160: no backup pieces found for backup set key: 4882
Also, RMAN is also not listing this backupset in LIST BACKUPSET SUMMARY command though it can list other backupsets which physically exists at the same disk location.
Please help me to resolve this problem.
