Managing HP Serviceguard for Linux, Tenth Edition, September 2012

This parameter can be set for failover packages only.
ip_subnet_node
In a cross-subnet configuration, specifies which nodes an ip_subnet is configured on.
If no ip_subnet_nodes are listed under an ip_subnet, it is assumed to be configured
on all nodes in this package’s node_name list (page 206).
Can be added or deleted while the package is running, with these restrictions:
• The package must not be running on the node that is being added or deleted.
• The node must not be the first to be added to, or the last deleted from, the list of
ip_subnet_nodes for this ip_subnet.
See also monitored_subnet_access (page 213) and “About Cross-Subnet Failover”
(page 151).
New for modular packages. For legacy packages, see “Configuring Cross-Subnet
Failover” (page 279).
ip_address
A relocatable IP address on a specified ip_subnet. Replaces IP, which is still supported
in the package control script for legacy packages.
For more information about relocatable IP addresses, see “Stationary and Relocatable
IP Addresses and Monitored Subnets” (page 68).
This parameter can be set for failover packages only.
service_name
A service is a program or function which Serviceguard monitors as long the package is
up. service_name identifies this function and is used by the cmrunserv and
cmhaltserv commands. You can configure a maximum of 30 services per package
and 900 services per cluster.
The length and formal restrictions for the name are the same as for package_name
(page 205). service_name must be unique among all packages in the cluster.
IMPORTANT: Restrictions on service names in previous Serviceguard releases were
less stringent. Packages that specify services whose names do not conform to the above
rules will continue to run, but if you reconfigure them, you will need to change the name;
cmcheckconf and cmapplyconf will enforce the new rules.
Each service is defined by five parameters: service_name, service_cmd,
service_restart, service_fail_fast_enabled, and
service_halt_timeout. See the descriptions that follow.
The following is an example of fully defined service:
Choosing Package Modules 215