Chapter 21: Cluster Administration Tasks

Overview

After your cluster is built, certain administration tasks need to be implemented to ensure that the systems will operate smoothly. Some of these tasks deal with monitoring how the cluster behaves; others are more involved and relate to changing the behavior of the cluster. It's also just good to know the behavior of daemons that are the system administrator's friends so you know which ones to check and keep running.

In this chapter, we will cover the following:

	Section
Cluster Administration GUIs	21.1
Moving the /tmp File System	21.2
Moving Swap to a Local Disk	21.3
Load-balancing CFS Servers	21.4
Configuration Variables	21.5
Cluster-wide cron	21.6
Essential Services Monitor Daemon	21.7
Important Files and Information to Have and to Hold	21.8
Cluster Command Summary	21.9