Anyone have real experience of the compression ratio with rman on 10g to disk ? My 300 gig database seems to be backed up into 40gig - Yes I know I could validate it but it gobbles CPU and took 11 hours to do the backup so I just want a reality check! The manual says 2 to 4 times. And Yes I also know I have to test recovery sometime but that will be out of Hours ! Oh and Happy Christmas to you all Howatd Latham -- //www.freelists.org/webpage/oracle-l