Pacemaker

Pacemaker is....

apt-get install pacemaker pcs resource-agents

yum install pacemaker pcs resource-agents

Add all hosts related to the cluster to /etc/hosts (including the host you're on, also remove any reference to localhost/ 127.0.0.1)

Set password for hacluster user:

passwd hacluster

authorise the nodes to be included in the cluster:

pcs host auth node01.srv.world node02.srv.world

start services for cluster:

pcs cluster start --all

enable services:

pcs cluster enable --all

Verify installation is working and nodes are connected:

pcs cluster status

pcs status corosync