8.0.5 on Unix.

I am running RMAN NOCATALOG, we run backup with level=0 (baseline, full) every monthend leve 1 every weekend and level 2 during weekday. when we issue

list backupset of database;

there are huge list of backup history listed. I try to use change backuppiece key validate, to remove those old history since it is useless (we only want keep the last month or two backup piece and history). the error is:

RMAN-03022: compiling command: change
RMAN-03026: error recovery releasing channel resources
RMAN-00569: ================error message stack follows================
RMAN-03002: failure during compilation of command
RMAN-03013: command type: change
RMAN-06038: recovery catalog package detected an error
RMAN-20300: operation not supported without the recovery catalog
RMAN-06092: error while looking up backup piece

it only works with catalog!!!

Does anyone know how to remove those old history useless piece?


thanks in advance