Managing Serviceguard Sixteenth Edition, March 2009

NOTE: For heartbeat configuration requirements, see the discussion of the
HEARTBEAT_IP parameter later in this chapter. For more information about managing
the speed of cluster re-formation, see the discussion of the MEMBER_TIMEOUT
parameter, and further discussion under “What Happens when a Node Times Out”
(page 118) ,“Modifying the MEMBER_TIMEOUT Parameter” (page 223), and, for
troubleshooting, “Cluster Re-formations Caused by MEMBER_TIMEOUT Being Set
too Low” (page 376).
Cluster Configuration Parameters
You need to define a set of cluster parameters. These are stored in the binary cluster
configuration file, which is distributed to each node in the cluster. You configure these
parameters by editing the cluster configuration template file created by means of the
cmquerycl command, as described under “Configuring the Cluster ” (page 216).
NOTE: See “Reconfiguring a Cluster” (page 323) for a summary of changes you can
make while the cluster is running.
The following parameters must be configured:
CLUSTER_NAME The name of the cluster as it will appear in the
output of cmviewcl and other commands, and
as it appears in the cluster configuration file.
The cluster name must not contain any of the
following characters: space, slash (/), backslash
(\), and asterisk (*).
138 Planning and Documenting an HA Cluster