Cluster
Cluster configuration, theory, and troubleshooting.
Pacemaker
Pacemaker provides a framework to manage the availability of resources. It's essentially the core...
Explanation
PCS (Pacemaker) Cluster Services: PCS (Pacemaker) Pacemaker provides a framework to manage the...
DRBD
DRBD is the service used for synchronisation of data (usually web and database files) on a cluste...
Unison
Clusters use unison, usually for synchronisation of configuration files.