Gene, That's the purpose of read-only tablespaces. You make to changes you need in the data, alter it to read only, and back it up to the backups device(disk,tape) and but the backup on the shelf. That way your 500 Gig datbase with 500 Meg active only requires the 500 Meg be backed up. Ron
>>> [EMAIL PROTECTED] 01/13/2004 11:24:24 AM >>> ENV: - AIX 4.3.3 - Oracle 8.1.7 I have one tablespace which is read only. Can I just copy the datafiles from a Read Only tablespace for a valid backup? For the rest of the db, I backup hot or cold. Is anyone copying Read Only Tablespace datafiles for backups? I haven't found this method officially supported by Oracle, but have read that is safe to copy Read Only datafiles (makes sense), just wondering if anyone is doing it? Thanks, Gene -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Ron Rogers INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).