Managing HP Serviceguard for Linux, Tenth Edition, September 2012

NOTE: See “Reconfiguring a Cluster” (page 260) 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 (*).
NOTE: In addition, the following characters must
not be used in the cluster name if you are using
the Quorum Server: at-sign (@), equal-sign (=),
or-sign (|), semicolon (;).
These characters are deprecated, meaning that
you should not use them, even if you are not using
the Quorum Server.
All other characters are legal. The cluster name
can contain up to 39 characters.
CAUTION: Make sure that the cluster name is
unique within the subnets configured on the cluster
nodes; under some circumstances Serviceguard
may not be able to detect a duplicate name and
unexpected problems may result.
In particular make sure that two clusters with the
same name do not use the same quorum server;
this could result in one of the clusters failing to
obtain the quorum server’s arbitration services
when it needs them, and thus failing to re-form.
HOSTNAME_ADDRESS_FAMILY Specifies the Internet Protocol address family to
which Serviceguard will try to resolve cluster node
names and Quorum Server host names. Valid
104 Planning and Documenting an HA Cluster