One node should suffice but make sure that the changes are minimal between the nodes. Sandeep -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of mek s Sent: Friday, September 16, 2011 3:55 AM To: ORACLE-L Subject: RAC 11gR2 Hi Experts, One quick question, I have a 5 RAC nodes 11gR2 on Redhat Linux. To backup my cluster, I would like to prapare my nodes for cloning, just in case of totally losing the whole cluster. My question is ; Should I copy crs home and oracle DB home of all nodes of the cluster OR only copy crs home and db home of one node is enough? Thank you, S -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l