Managing Red Hat Cluster With Conga; Starting, Stopping, And Deleting Clusters - Red Hat ENTERPRISE LINUX 5 - ADMINISTRATION Manual

Chapter 4.

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 4.1, "Starting, Stopping, and Deleting Clusters"
•
Section 4.2, "Managing Cluster Nodes"
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Section 4.3, "Managing High-Availability Services"
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Section 4.4, "Diagnosing and Correcting Problems in a Cluster"
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4.1. 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.
• Delete this cluster — Selecting this action halts a running cluster, disables cluster software
from starting automatically, and removes the cluster configuration file from each node. You can
select this action for any state the cluster is in. Deleting a cluster frees each node in the cluster
for use in another cluster.
2. Select one of the functions and click Go.
3. Clicking Go causes a progress page to be displayed. When the action is complete, a page is
displayed showing either of the following pages according to the action selected:
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