Managing HP Serviceguard A.11.20.20 for Linux, May 2013

• Cross-subnet configurations are not supported.
This also applies if HOSTNAME_ADDRESS_FAMILY is set to IPV6. See “Cross-Subnet
Configurations” (page 27) for more information about such configurations.
• Virtual machines are not supported.
You cannot have a virtual machine that is either a node or a package if
HOSTNAME_ADDRESS_FAMILY is set to ANY or IPV6.
4.7.4 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 153).
NOTE: See “Reconfiguring a Cluster” (page 225) 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
4.7 Cluster Configuration Planning 91