Using Serviceguard Extension for RAC, 2nd Edition, February 2005 Update

Table Of Contents
Introduction to Serviceguard Extension for RAC
Configuring Packages for Oracle RAC Instances
Chapter 122
Configuring Packages for Oracle RAC
Instances
Oracle instances can be configured as packages with a single node in
their node list. Package configuration is described in Chapter 2.
NOTE Packages that start and halt Oracle instances (called instance
packages) do not fail over from one node to another; they are
single-node packages. You should include only one node name in the
package ASCII configuration file. The AUTO_RUN setting will determine
whether the RAC instance will start up as the node joins the cluster.
Your cluster may include RAC and non-RAC packages in the same
configuration.
Configuring Packages for Oracle Listeners
Oracle listeners can be configured as packages within the cluster (called
listener packages). Each node with a RAC instance can be configured
with a listener package. Listener packages are configured to
automatically fail over from original node to an adoptive node. When the
original node is restored, the listener package automatically fails back to
the original node.
In the listener package ASCII configuration file, the
FAILBACK_POLICY is set to AUTOMATIC. The SUBNET is set of
monitored subnets. The package can be set to automatically startup
with the AUTO_RUN setting.
Each RAC instance can be configured to register with listeners assigned
to handle client connections. The listener package script is configured to
add the package IP address and start the listener on the original node.
Since each node can be configured with a listener package, when the
listener package runs on an adoptive node, the package script should be
configured to add the package IP address, but should not start the
listener. If the adoptive node also has a RAC instance, the adoptive node
should have its own listener package configured with its own package IP
address and listener.