Managing HP Serviceguard A.11.20.20 for Linux, March 2014

NOTE: A weight (WEIGHT_NAME, WEIGHT_DEFAULT)
has no meaning on a node unless a corresponding capacity
(CAPACITY_NAME, CAPACITY_VALUE) is defined for that
node.
For the reserved weight and capacity package_limit,
the default weight is always one. This default cannot be
changed in the cluster configuration file, but it can be
overridden for an individual package in the package
configuration file.
cmapplyconf will fail if you define a default for a weight
but do not specify a capacity of the same name for at least
one node in the cluster. You can define a maximum of four
WEIGHT_DEFAULTs per cluster.
Can be changed while the cluster is running.
(Access Control Policies) Specify three things for each policy: USER_NAME,
USER_HOST, and USER_ROLE. Policies set in the
configuration file of a cluster and its packages must not be
conflicting or redundant. For more information, see
“Controlling Access to the Cluster” (page 158).
MAX_CONFIGURED_PACKAGES This parameter sets the maximum number of packages that
can be configured in the cluster. The minimum value is 0,
and the maximum value, which is also the default, is 300.
Can be changed while the cluster is running.
4.7.5 Cluster Configuration: Next Step
When you are ready to configure the cluster, proceed to “Configuring the Cluster” (page 153). If
you find it useful to record your configuration ahead of time, use the Cluster Configuration worksheet
(page 287).
4.8 Package Configuration Planning
Planning for packages involves assembling information about each group of highly available
services.
NOTE: As of Serviceguard A.11.18, there is a new and simpler way to configure packages.
This method allows you to build packages from smaller modules, and eliminates the separate
package control script and the need to distribute it manually; see Chapter 6: “Configuring Packages
and Their Services ” (page 169), for complete instructions.
This manual refers to packages created by the newer method as modular packages, and to packages
created by the older method as legacy packages.
The discussion that follows assumes you will be using the modular method. For information and
instructions on creating and maintaining legacy packages, see “Configuring a Legacy Package”
(page 233).
The document HP Serviceguard Developer’s Toolbox User Guide, December 2012 provides a
guide for integrating an application with Serviceguard using a suite of customizable scripts known
as "Serviceguard Developer’s Toolbox" intended for use with modular packages only. The
“Serviceguard Developer’s Toolbox” is available free of charge and can be downloaded from
Software Depot at http://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?
productNumber=SGDTOOLBOX.
104 Planning and Documenting an HA Cluster