Hello, Here is a latest post about setting up Oracle 10gR2(10.2.0.4) to 11gR2(11.2.0.2) RAC. http://www.freeoraclehelp.com/2011/09/oracle-11gr2-rac-upgrade-from-10gr2-rac.html Let me know if you do not want to get these articles or links. Should you have any questions about it, do let me know. Thanks, Raj Mareddi List Moderator http://www.freeoraclehelp.com