Installation guide

Configurat ion T ool on cluster node nano-01, do the following:
1. Log in to a cluster node and run system-config-cluster. For example:
$ ssh -Y root@nano -01
.
.
.
# system-config-cluster
2. If this is the first time you have started the Cluster Configurat ion T ool, the program prompts
you to either open an existing configuration or create a new one. Click Create New
Configuration to start a new configuration file (refer to Figure 5.1, “Starting a New
Configuration File”).
Figure 5.1. Start ing a New Configurat ion File
Note
The Cluster Management tab for the Red Hat Cluster Suite management GUI is available
after you save the configuration file with the Cluster Configuration Tool, exit, and restart
the the Red Hat Cluster Suite management GUI (system-config-cluster). (The
Cluster Management tab displays the status of the cluster service manager, cluster
nodes, and resources, and shows statistics concerning cluster service operation. T o
manage the cluster system further, choose the Cluster Configurat ion tab.)
3. Clicking Create New Configuration causes the New Configuration dialog box to be
displayed (refer to Figure 5.2, “Creating A New Configuration”). T he New Configuration dialog
box provides a text box for a cluster name and group boxes for the following configuration options:
Choose Lock Method, Use Multicast (DLM clusters only), and Use a Quorum Disk (DLM
clusters only). In most circumstances you only need to configure a cluster name and a lock
method. Distribut ed Lock Manager (DLM) is the default lock method. To configure a GULM
cluster, select Grand Unified Lock Manager (GULM). (Selecting Grand Unified Lock
Manager (GULM) disables Use Multicast and Use a Quorum Disk, which are applicable only
to DLM clusters). Use Multicast specifies whether a multicast address is used for cluster
management communication among cluster nodes. Use Multicast is disabled (checkbox
unchecked) by default. To use a multicast address for cluster management communication among
cluster nodes, click the Use Multicast checkbox (enabled when checked). When Use Multicast
is enabled, the Address text boxes are enabled; enter the multicast address into the Address
text boxes. To use a quorum disk, click the Use a Quorum Disk checkbox and enter quorum disk
parameters. The following quorum-disk parameters are available in the dialog box if you enable
Use a Quorum Disk: Interval, T KO, Votes, Minimum Score, Device, Label, and Quorum
Chapter 5. Configuring Red Hat Cluster With system-config-cluster
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