There's no requirement to use RMAN if you're using RAC, though Oracle is definitely encouraging you to use RMAN universally (not just for RAC). Matt ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Peter McLarty Sent: Wednesday, May 30, 2007 3:53 AM To: sjaffarhussain@xxxxxxxxx; oracle-l Subject: RE: Moving from single instance to RAC You have to use RMAN We are planning to move one of our highly OLTP Oracle 10gR2 database on AIX from single instance to 2 node RAC. I just would like hear from any of one here about the issues or potential problems when moved from a single instance to RAC. I would be gald if you guys share you experince or throw some limelight or tips.