Centos 4.5 in vmware server ona windows xp box. Following dizwell.com instructions for setting up RAC. was not able to use my ocfs2console, so I manually tried starting the o2cb [root@owner-0d4d0311f init.d]# /etc/init.d/o2cb start Loading module "configfs": OK Mounting configfs filesystem at /config: OK Loading module "ocfs2_nodemanager": OK Loading module "ocfs2_dlm": OK Loading module "ocfs2_dlmfs": OK Mounting ocfs2_dlmfs filesystem at /dlm: OK Starting O2CB cluster ocfs2: Failed Cluster ocfs2 created o2cb_ctl: Configuration error discovered while populating cluster ocfs2. None of its nodes were considered local. A node is considered local when its node name in the configuration matches this machine's host name. I found this, but I thought the ocfs2console is what populates the ocfs.conf? http://dba.shilpatech.com/rac.html "What if you want to change the IP address of your host how do you make the cluster work ? o2cb_ctl: Configuration error discovered while populating cluster ocfs2. None o f its nodes were considered local. A node is considered local when its node nam e in the configuration maches this machine's host name. Just ensure that the host name in /etc/ocfs2/cluster.conf matches the hostname of the computer." I thought the ocfs2console is supposed to setup the ocfs2.conf, when I look at the ocfs.conf there is nothing in it: [root@owner-0d4d0311f init.d]# cat /etc/ocfs2/cluster.conf cluster: node_count = 0 name = ocfs2 -- //www.freelists.org/webpage/oracle-l