Managing Cluster Nodes - Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.1 Configuration Manual

Chapter 4. Managing Red Hat Cluster With Conga
• 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:
• For Restart this cluster and Stop this cluster/Start this cluster — Displays a page with
the list of nodes for the cluster.
• For Delete this cluster — Displays the Choose a cluster to administer page in the
cluster tab, showing a list of clusters.

2. Managing Cluster Nodes

You can perform the following node-management functions through the luci server component
of Conga:
• Make a node leave or join a cluster.
• Fence a node.
• Reboot a node.
• Delete a node.
To perform one the functions in the preceding list, follow the steps in this section. The starting
point of the procedure is at the cluster-specific page that you navigate to from Choose a
cluster to administer displayed on the cluster tab.
1. At the detailed menu for the cluster (below the clusters menu), click Nodes. Clicking Nodes
causes the display of nodes in the center of the page and causes the display of an Add a
Node element and a Configure element with a list of the nodes already configured in the
cluster.
2. At the right of each node listed on the page displayed from the preceding step, click the
Choose a task drop-down box. Clicking Choose a task drop-down box reveals the following
selections: Have node leave cluster/Have node join cluster, Fence this node, Reboot
this node, and Delete. The actions of each function are summarized as follows:
• Have node leave cluster/Have node join cluster — Have node leave cluster is
available when a node has joined of a cluster. Have node join cluster is available when a
node has left a cluster.
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