Managing HP Serviceguard A.11.20.20 for Linux, May 2013

Do not use the full domain name. For example, enter
ftsys9, not ftsys9.cup.hp.com. A cluster can contain
up to 16 nodes.
IMPORTANT: Node names must be 39 characters or less,
and are case-sensitive; for each node, the node_name in
the cluster configuration file must exactly match the
corresponding node_name in the package configuration
file (see Chapter 6: “Configuring Packages and Their
Services ” (page 169)) and these in turn must exactly match
the hostname portion of the name specified in the node’s
networking configuration. (Using the above example,
ftsys9 must appear in exactly that form in the cluster
configuration and package configuration files, and as
ftsys9.cup.hp.com in the DNS database).
The parameters immediately following NODE_NAME in this
list (NETWORK_INTERFACE, HEARTBEAT_IP,
STATIONARY_IP, CLUSTER_LOCK_LUN,
CAPACITY_NAME, and CAPACITY_VALUE) apply
specifically to the node identified by the preceding
NODE_NAME entry.
CLUSTER_LOCK_LUN The pathname of the device file to be used for the lock LUN
on each node. The pathname can contain up to 39
characters.
See “Setting up a Lock LUN” (page 143) and “Specifying a
Lock LUN” (page 155)
Can be changed while the cluster is running; see “Updating
the Cluster Lock LUN Configuration Online” (page 233). See
also “What Happens when You Change the Quorum
Configuration Online” (page 43) for important information.
NOTE: An iSCSI storage device does not support
configuring a lock LUN.
SITE The name of a site (defined by SITE_NAME) to which the
node identified by the preceding NODE_NAME entry belongs.
Can be used only in a site-aware disaster recovery cluster,
which requires Metrocluster (additional HP software); see
the documents listed under “Cross-Subnet Configurations”
(page 27) for more information.
If SITE is used, it must be used for each node in the cluster
(that is, all the nodes must be associated with some defined
site, though not necessarily the same one).
If you are using SITEs, you can restrict the output of
cmviewcl (1m) to a given site by means of the -S
<sitename> option. In addition, you can configure a
site_preferred or site_preferred_manual
failover_policy (page 178) for a package.
94 Planning and Documenting an HA Cluster