Managing HP Serviceguard for Linux, Eighth Edition, March 2008

Planning and Documenting an HA Cluster
Package Configuration Planning
Chapter 4122
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” on page 209 for more
information.
Table 4-1 Package Failover Behavior
Switching Behavior Parameters in Configuration File
Package switches
normally after detection
of service or network,
failure, or when a
configured dependency is
not met. Halt script runs
before switch takes place.
(Default)
• node_fail_fast_enabled set to no.
(Default)
• service_fail_fast_enabled set to
no for all services. (Default)
• auto_run set to yes for the package.
(Default)
Package fails over to the
node with the fewest
active packages.
• failover_policy set to
min_package_node.
Package fails over to the
node that is next on the
list of nodes. (Default)
• failover_policy set to
configured_node. (Default)
Package is automatically
halted and restarted on
its primary node if the
primary node is available
and the package is
running on a non-primary
node.
• failback_policy set to automatic.
Package can be manually
returned to its primary
node if it is running on a
non-primary node, but
this does not happen
automatically.
• failback_policy set to manual.
(Default)
• failover_policy set to
configured_node. (Default)