Managing HP Serviceguard for Linux Ninth Edition, April 2009

Create an entry for each logical volume, indicating its use for a file system or for a raw
device.
CAUTION: Do not use /etc/fstab to mount file systems that are used by
Serviceguard packages.
For information about creating, exporting, and importing volume groups, see “Creating
the Logical Volume Infrastructure ” (page 159).
Planning for Expansion
You can add packages to a running cluster. This process is described in Chapter 7:
“Cluster and Package Maintenance” (page 221).
When adding packages, be sure not to exceed the value of max_configured_packages as
defined in the cluster configuration file (see “Cluster Configuration Parameters ”
(page 100)). You can modify this parameter while the cluster is running if you need to.
Choosing Switching and Failover Behavior
To determine the failover behavior of a failover package (see “Package Types”
(page 49)), you define the policy that governs where Serviceguard will automatically
start up a package that is not running. In addition, you define a failback policy that
determines whether a package will be automatically returned to its primary node when
that is possible.
The following table describes different types of failover behavior and the settings in
the package configuration file that determine each behavior. See “Package Parameter
Explanations” (page 196) for more information.
120 Planning and Documenting an HA Cluster