On any host that is meant to be part of a Pacemaker cluster, you must first establish cluster communications through the Corosync messaging layer. This involves installing the following packages (and their dependencies, which your package manager will normally install automatically):
pacemakerNote that the crm shell should be downloaded separately.-
crmsh -
corosync -
cluster-glue fence-agents(Fedora only; all other distributions use fencing agents fromcluster-glue)-
resource-agents
