Red Hat CLUSTER FOR ENTERPRISE LINUX 5.0, Configuration Manual

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Managing Red Hat Cluster With
Conga
This chapter describes various administrative tasks for managing a Red Hat Cluster and
consists of the following sections:
• Section 1, “Starting, Stopping, and Deleting Clusters”
• Section 2, “Managing Cluster Nodes”
• Section 3, “Managing High-Availability Services”
• Section 4, “Diagnosing and Correcting Problems in a Cluster”
1. Starting, Stopping, and Deleting Clusters
You can perform the following cluster-management functions through the luci server component
of Conga:
• Restart a cluster.
• Start a cluster.
• Stop a cluster.
• Delete a cluster.
To perform one of the functions in the preceding list, follow the steps in this section. The starting
point of the procedure is at the cluster tab (at the Choose a cluster to administer page).
1. At the right of the Cluster Name for each cluster listed on the Choose a cluster to
administer page is a drop-down box. By default, the drop-down box is set to Restart this
cluster. Clicking the drop-down box box reveals all the selections available: Restart this
cluster, Stop this cluster/Start this cluster, and Delete this cluster. The actions of each
function are summarized as follows:
• Restart this cluster — Selecting this action causes the cluster to be restarted. You can
select this action for any state the cluster is in.
• Stop this cluster/Start this cluster — Stop this cluster is available when a cluster is
running. Start this cluster is available when a cluster is stopped.
Selecting Stop this cluster shuts down cluster software in all cluster nodes.
Selecting Start this cluster starts cluster software.
Chapter 4.
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