Installation guide

4. Click Subm it. Clicking Submit causes the the Create a new cluster page to be displayed
again, showing the parameters entered in the preceding step, and Lock Manager parameters.
The Lock Manager parameters consist of the lock manager option buttons, DLM (preferred)
and GULM, and Lock Server text boxes in the GULM lock server properties group box.
Configure Lock Manager parameters for either DLM or GULM as follows:
For DLM — Click DLM (preferred) or confirm that it is set.
For GULM — Click GULM or confirm that it is set. At the GULM lock server properties group
box, enter the FQDN or the IP address of each lock server in a Lock Server text box.
Note
You must enter the FQDN or the IP address of one, three, or five GULM lock servers.
5. Re-enter enter the root password for each node in the in the Root Password column.
6. Click Subm it. Clicking Submit causes the following actions:
a. Cluster software packages to be downloaded onto each cluster node.
b. Cluster software to be installed onto each cluster node.
c. Cluster configuration file to be created and propagated to each node in the cluster.
d. Starting the cluster.
A progress page shows the progress of those actions for each node in the cluster.
When the process of creating a new cluster is complete, a page is displayed providing a
configuration interface for the newly created cluster.
3.4. 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. T he interface
provides the following tabs: General, GULM (GULM clusters only), Fence (DLM clusters only),
Multicast (DLM clusters only), and Quorum Part ition (DLM clusters only). 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 — T his 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. T he only way to change the name of a Red Hat
cluster is to create a new cluster configuration with the new name.
The Configurat ion 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 Configurat ion Version text box.
You can enter advanced cluster properties by clicking Show advanced cluster propert ies.
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 (DLM clusters only) — T his tab provides an interface for configuring these Fence
Daemon Properties parameters: Post-Fail Delay and Post -Join Delay. T he parameters are
summarized as follows:
Red Hat Enterprise Linux 4 Cluster Administration
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