change with unavailable,validate,crosscheck

RMAN> change backuppiece '/SHARED/backup1/9gp8grvi_1_1' unavailable;

changed backup piece unavailable
backup piece handle=/SHARED/backup1/9gp8grvi_1_1 RECID=222 STAMP=847802364
Changed 1 objects to UNAVAILABLE status


RMAN> change backupset 191 available;

using channel ORA_DISK_1
using channel ORA_DISK_2
using channel ORA_DISK_3
using channel ORA_DISK_4
using channel ORA_DISK_5
changed backup piece available
backup piece handle=/SHARED/backup1/9gp8grvi_1_1 RECID=222 STAMP=847802364
Changed 1 objects to AVAILABLE status

RMAN>  change backuppiece '/SHARED/backup1/9gp8grvi_1_1' validate;

using channel ORA_DISK_1

using channel ORA_DISK_2

using channel ORA_DISK_3

using channel ORA_DISK_4

using channel ORA_DISK_5

crosschecked backup piece: found to be 'AVAILABLE'

backup piece handle=/SHARED/backup1/9gp8grvi_1_1 RECID=222 STAMP=847802364

Crosschecked 1 objects

RMAN>  change backuppiece '/SHARED/backup1/9gp8grvi_1_1' crosscheck;

using channel ORA_DISK_1

using channel ORA_DISK_2

using channel ORA_DISK_3

using channel ORA_DISK_4

using channel ORA_DISK_5

crosschecked backup piece: found to be 'AVAILABLE'

backup piece handle=/SHARED/backup1/9gp8grvi_1_1 RECID=222 STAMP=847802364

Crosschecked 1 objects