[ Thanks to An Anonymous Reader for
this link. ]
“If just one server goes down, essential services don’t have to
shut down, too. Linux administrators can keep those services up all
the time by setting up a Heartbeat cluster on Linux. Heartbeat adds
the advantage of the cluster to Xen virtual machines (VMs) as well,
so VMs can also be maintained when a server crashes.“This series explains how to configure and use a Heartbeat
cluster on SUSE Linux Enterprise Server using a storage area
network (SAN) and a Xen VM as a cluster resource. I’ll also discuss
the Linux Heartbeat project, whose mission is improving critical
services availability in the network environment at critical
times…”