Configuring A High Availability Cluster (Heartbeat) On CentOS

Configuring A High Availability Cluster (Heartbeat) On CentOS:

From HowtoForge here's the documentation About linux cluster. God bless HF:)

This guide shows how you can set up a two node, high-availability HTTP cluster with heartbeat on CentOS. Both nodes use the Apache web server to serve the same content.

Reference:

http://www.howtoforge.com/high_availability_heartbeat_centos

MYSQL:

We’re going to go through the entire process of installing, configuring and testing DRBD, Heartbeat and MySQL running in a 2 node cluster environment. This will be a general configuration for learning.
Best practices and security will take a back seat while we learn how all the different pieces work together.

http://almamunbd.wordpress.com/2009/05/28/how-to-configure-mysql-high-availability-with-drbd-and-heartbeat-on-centos-5-3/