Once the Corosync services have been started and you have established that the cluster is communicating properly, it is safe to start pacemakerd, the Pacemaker master control process: /etc/init.d/pacemaker start (LSB) service pacemaker start (LSB, alternate) start pacemaker (upstart) systemctl start pacemaker (systemd) Once Pacemaker services have started, Pacemaker will create a default empty cluster configuration with no resources. You may observe Pacemaker’s status with the crm_mon utility: ============ Last updated: Sun Oct 7 21:07:52 2012 Last change: Sun Oct 7 20:46:00 2012 via cibadmin on node2 Stack: openais Current DC: node2 - partition with quorum Version: 1.1.6-9971ebba4494012a93c03b40a2c58ec0eb60f50c 2 Nodes configured, 2 expected votes 0 Resources configured. ============ Online: [ node2 node1 ]