Managing Serviceguard 13th Edition, February 2007

Cluster and Package Maintenance
Reviewing Cluster and Package Status
Chapter 7 299
• Switching Enabled for a Node. For failover packages, enabled means
that the package can switch to the referenced node. Disabled means
that the package cannot switch to the specified node until the node is
enabled for the package using the cmmodpkg command.
Every failover package is marked Enabled or Disabled for each node
that is either a primary or adoptive node for the package.
For multi-node packages, node switching Disabled means the
package cannot start on that node.
Service Status Services have only status, as follows:
• Up. The service is being monitored.
• Down. The service is not running. It may have halted or failed.
• Uninitialized. The service is included in the cluster configuration,
but it was not started with a run command in the control script.
• Unknown.
Network Status The network interfaces have only status, as follows:
• Up.
• Down.
• Unknown. Serviceguard cannot determine whether the interface is up
or down. A standby interface has this status.
Failover and Failback Policies Failover packages can be configured
with one of two values for the FAILOVER_POLICY parameter:
• CONFIGURED_NODE. The package fails over to the next node in the
node list in the package configuration file.
• MIN_PACKAGE_NODE. The package fails over to the node in the cluster
with the fewest running packages on it.
Failover packages can also be configured with one of two values for the
FAILBACK_POLICY parameter:
• AUTOMATIC. With this setting, a package, following a failover, returns
to its primary node when the primary node becomes available again.
• MANUAL. With this setting, a package, following a failover, must be
moved back to its original node by a system administrator.