If you look at other postings on this forum I've been advocating the benefits of RMAN compression for some time! :-) Robert Robert G. Freeman Author: Oracle Database 11g New Features (Oracle Press) Portable DBA: Oracle (Oracle Press) Oracle Database 10g New Features (Oracle Press) Oracle9i RMAN Backup and Recovery (Oracle Press) Oracle9i New Feature Blog: http://robertgfreeman.blogspot.com (Oracle Press) ----- Original Message ---- From: Jack van Zanen <jack@xxxxxxxxxxxx> To: j.miranda@xxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx Sent: Tuesday, January 15, 2008 12:30:36 PM Subject: RE: RMAN Compression experiences <!-- _filtered {font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman", "serif";} a:link, span.MsoHyperlink {color:blue;text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:purple;text-decoration:underline;} span.EmailStyle17 {font-family:"Calibri", "sans-serif";color:#1F497D;} .MsoChpDefault {font-size:10.0pt;} _filtered {margin:1.0in 1.0in 1.0in 1.0in;} div.Section1 {} --> Nope, similar experience as you have Jack From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Juan Miranda Sent: Wednesday, January 16, 2008 4:18 AM To: oracle-l@xxxxxxxxxxxxx Subject: RMAN Compression experiences Hi I tried RMAN compression and it seems to work fast (if you use parallel channels) and very eficiently. I get a compress ratio of 10 to 1. Anyone have some negative experiences (bugs,etc.) working with it ?? Thanks.