Using Serviceguard Extension for RAC, 6th Edition, April 2008

Network Status
The network interfaces have only status, as follows:
• Up.
• Down.
• Unknown. We cannot determine whether the interface is up or down. This can
happen when the cluster is down. A standby interface has this status.
Serial Line Status
The serial line has only status, as follows:
• Up. Heartbeats are received over the serial line.
• Down. Heartbeat has not been received over the serial line within 2 times the
NODE_TIMEOUT value.
• Recovering. A corrupt message was received on the serial line, and the line is
in the process of resynchronizing.
• Unknown. We cannot determine whether the serial line is up or down. This can
happen when the remote node is down.
Failover and Failback Policies
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.
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.
Failover and failback policies are displayed in the output of the cmviewcl -v
command.
Examples of Cluster and Package States
The following sample output from the cmviewcl -v command shows status for the
cluster in the sample configuration.
Reviewing Cluster and Package States with the cmviewcl Command 145