1.3. Pacemaker Overview
1.3. Pacemaker Overview The High Availability Add-On cluster infrastructure provides the basic functions for a group of computers (called nodes or members ) to work together as a cluster. Once a cluster is formed using the cluster infrastructure, you can use other components to suit your clustering needs (for example, setting up a cluster for sharing files on a GFS2 file system or setting up service failover). The cluster infrastructure performs the following functions: Cluster management Lock management Fencing Cluster configuration management