Managing HP Serviceguard A.11.20.10 for Linux, December 2012

IPv4 address in this file (in the case of /etc/hosts, the IPv4 loopback address cannot be
removed). In addition, the file must contain the following entry:
::1 localhost ipv6-localhost ipv6-loopback
For more information and recommendations about hostname resolution, see “Configuring
Name Resolution” (page 131).
• You must use $SGCONF/cmclnodelist, not ~/.rhosts or /etc/hosts.equiv, to
provide root access to an unconfigured node.
See “Allowing Root Access to an Unconfigured Node” (page 130) for more information.
• Hostname aliases are not supported for IPv6 addresses, because of operating system limitations.
NOTE: This applies to all IPv6 addresses, whether HOSTNAME_ADDRESS_FAMILY is set to
IPV6 or ANY.
• 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 147).
NOTE: See “Reconfiguring a Cluster” (page 216) 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.
86 Planning and Documenting an HA Cluster