Red Hat CLUSTER FOR ENTERPRISE LINUX 5.0, Руководство по настройке

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4. Global Cluster Properties
When a cluster is created, or if you select a cluster to configure, a cluster-specific page is
displayed. The page provides an interface for configuring cluster-wide properties and detailed
properties. You can configure cluster-wide properties with the tabbed interface below the cluster
name. The interface provides the following tabs: General, Fence, Multicast, and Quorum
Partition. To configure the parameters in those tabs, follow the steps in this section. If you do
not need to configure parameters in a tab, skip the step for that tab.
1. General tab — This tab displays cluster name and provides an interface for configuring the
configuration version and advanced cluster properties. The parameters are summarized as
follows:
• The Cluster Name text box displays the cluster name; it does not accept a cluster name
change. You cannot change the cluster name. The only way to change the name of a Red
Hat cluster is to create a new cluster configuration with the new name.
• The Configuration Version value is set to
1
by default and is automatically incremented
each time you modify your cluster configuration. However, if you need to set it to another
value, you can specify it at the Configuration Version text box.
• You can enter advanced cluster properties by clicking Show advanced cluster
properties. Clicking Show advanced cluster properties reveals a list of advanced
properties. You can click any advanced property for online help about the property.
Enter the values required and click Apply for changes to take effect.
2. Fence tab — This tab provides an interface for configuring these Fence Daemon Properties
parameters: Post-Fail Delay and Post-Join Delay. The parameters are summarized as
follows:
• The Post-Fail Delay 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
Post-Fail Delay default value is
0
. Its value may be varied to suit cluster and network
performance.
• The Post-Join Delay parameter is the number of seconds the fence daemon (
fenced
)
waits before fencing a node after the node joins the fence domain. The Post-Join Delay
default value is
3
. A typical setting for Post-Join Delay is between 20 and 30 seconds, but
can vary according to cluster and network performance.
Enter values required and Click Apply for changes to take effect.
Note
For more information about Post-Join Delay and Post-Fail Delay, refer to the
fenced(8) man page.
Chapter 3. Configuring Red Hat Cluster With Conga
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