Installation guide

5.5. Adding and Delet ing Members

The procedure to add a member to a cluster varies depending on whether the cluster is a newly-

configured cluster or a cluster that is already configured and running. To add a member to a new

cluster, refer to Section 5.5.1, “Adding a Member to a Cluster”. To add a member to an existing

cluster, refer to Section 5.5.2, “ Adding a Member to a Running Cluster”. To delete a member from a

cluster, refer to Section 5.5.3, “ Deleting a Member from a Cluster”.

5.5.1. Adding a Member t o a Clust er

To add a member to a new cluster, follow these steps:

1. Click Clu st er N o d e.

2. At the bottom of the right frame (labeled Pro p ert ies), click the Add a Cluster Node

button. Clicking that button causes a Node Properties dialog box to be displayed. The

Node Properties dialog box presents text boxes for Clu st er No d e Name and Q u o ru m

Vo t es (refer to Figure 5.5, “ Adding a Member to a New Cluster”).

Fig u re 5.5. Ad d in g a Member t o a N ew Clu st er

3. At the Clu st er No d e N ame text box, specify a node name. The entry can be a name or an IP

address of the node on the cluster subnet.

Note

Each node must be on the same subnet as the node from which you are running the

Clu st er Co n f ig u rat io n T o o l and must be defined either in D NS or in the

/etc/hosts file of each cluster node.

Note

The node on which you are running the Clu st er Co n f ig u rat io n T o o l must be

explicitly added as a cluster member; the node is not automatically added to the cluster

configuration as a result of running the Clu st er Co n f ig u rat io n T o o l.

4. Optionally, at the Q u o ru m Vo t es text box, you can specify a value; however in most

configurations you can leave it blank. Leaving the Q u o ru m Vo t es text box blank causes the

quorum votes value for that node to be set to the default value of 1.

5. Click OK.

Red Hat Ent erprise Linux 5 Clust er Administ rat ion