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5.3. Configuring Cluster Properties
In addition to configuring cluster parameters in the preceding section (Section 5.2, “Starting the Cluster Configuration Tool”), you can configure the following cluster properties: (optional), a (optional), and . To configure cluster properties, follow these steps:
- At the left frame, click .
- At the bottom of the right frame (labeled ), click the button. Clicking that button causes a Cluster Properties dialog box to be displayed. The Cluster Properties dialog box presents text boxes for , and , and two parameters (DLM clusters only): and .
- (Optional) At the text box, specify a cluster alias for the cluster. The default cluster alias is set to the true cluster name provided when the cluster is set up (refer to Section 5.2, “Starting the Cluster Configuration Tool”). The cluster alias should be descriptive enough to distinguish it from other clusters and systems on your network (for example,
nfs_clusterorhttpd_cluster). The cluster alias cannot exceed 15 characters. - (Optional) The value is set to
1by default and is automatically incremented each time you save your cluster configuration. However, if you need to set it to another value, you can specify it at the text box. - Specify the parameters (DLM clusters only): and .
- The parameter is the number of seconds the fence daemon (
fenced) waits before fencing a node after the node joins the fence domain. The default value is3. A typical setting for is between 20 and 30 seconds, but can vary according to cluster and network performance. - The parameter is the number of seconds the fence daemon (
fenced) waits before fencing a node (a member of the fence domain) after the node has failed.The default value is0. Its value may be varied to suit cluster and network performance.
Note
For more information about and , refer to the fenced(8) man page. - Save cluster configuration changes by selecting => .
