Arun, Retention Period is a 9i concept. I don't believe it exists in 8i. What I do is to perform a backup purge using the following query: select 'change backuppiece ' || bp.bp_key || ' delete;' from rc_backup_piece bp,rc_database db where db.name = upper('%1') and bp.db_id = db.dbid and bp.start_time < sysdate-30 / Run this connected as the Rman user. It will generate Rman commands to purge backups that are more than 30 days old. Run the resulting script with allocate channel for maintenance type 'SBT_TAPE' ; And you are in business. Good Luck! Tom Mercadante Oracle Certified Professional -----Original Message----- From: arun chakrapani rao [mailto:arunrao_oradba@xxxxxxxxxxx] Sent: Thursday, October 14, 2004 9:44 AM To: oracle-l@xxxxxxxxxxxxx Subject: Help needed in 8i Retention Period Hi Rman Gurus, Can anybody please let me know how to set the retention period in 8i and also what is the default retention period set in 8i. I have a NT box here where in I have to configure rman for everyday backup which includes full and incremental backup and the damagement wants to keep one week worth of backup only. Please let me know how to get this enabled Thanks in Advance Arun ________________________________________________________________________ Yahoo! India Matrimony: Find your life partner online Go to: http://yahoo.shaadi.com/india-matrimony -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l