The following article will describe how to configure a CentOS 5.x-based or Centos 6.x-based system to use Fedora Epel repos and third party remi package repos. These package repositories are not officially supported by CentOS, but they provide much more current versions of popular applications like PHP or MYSQL.
Red Hat Cluster Suite is a collection of technologies working together to provide data integrity and the ability to maintain application availability in the event of a failure. Administrators can deploy enterprise cluster solutions using a combination of hardware redundancy along with the failover and load-balancing technologies in Red Hat Cluster Suite.