Installation guide

Figure 5.6. Adding a Member to a New GULM Cluster

3. At the Cluster Node Name text box, specify a node name. T he 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

Cluster Configurat ion Tool and must be defined either in DNS or in the /etc/hosts file

of each cluster node.

Note

The node on which you are running the Cluster Configuration Tool must be explicitly

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

as a result of running the Cluster Configurat ion T ool.

4. Optionally, at the Quorum Vot es text box, you can specify a value; however in most

configurations you can leave it blank. Leaving the Quorum Votes text box blank causes the

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

5. Click OK.

6. Configure fencing for the node:

a. Click the node that you added in the previous step.

b. At the bottom of the right frame (below Properties), click Manage Fencing For This

Node. Clicking Manage Fencing For T his Node causes the Fence

Configuration dialog box to be displayed.

c. At the Fence Configuration dialog box, bottom of the right frame (below Properties),

click Add a New Fence Level. Clicking Add a New Fence Level causes a fence-

level element (for example, Fence- Level-1, Fence-Level-2, and so on) to be displayed

below the node in the left frame of the Fence Configuration dialog box.

d. Click the fence-level element.

e. At the bottom of the right frame (below Properties), click Add a New Fence to this

Level. Clicking Add a New Fence to this Level causes the Fence Properties

dialog box to be displayed.

f. At the Fence Properties dialog box, click the Fence Device Type drop-down box and

select the fence device for this node. Also, provide additional information required (for

example, Port and Switch for an APC Power Device).

g. At the Fence Properties dialog box, click OK. Clicking OK causes a fence device element

to be displayed below the fence-level element.

Red Hat Enterprise Linux 4 Cluster Administration