Using Serviceguard Extension for RAC, 3rd Edition, May 2006

Introduction to Serviceguard Extension for RAC
What is a Serviceguard Extension for RAC Cluster?
Chapter 118
Figure 1-2 Group Membership Services
Using Packages in a Cluster
In order to make other important applications highly available (in
addition to the Oracle Real Application Cluster), you can configure your
RAC cluster to use packages. Packages group applications and services
together; in the event of a service, node, or network failure, Serviceguard
Extension for RAC can automatically transfer control of all system
resources in a designated package to another node within the cluster,
allowing your applications to remain available with minimal
interruption.
NOTE In RAC clusters, you create packages to start and stop RAC itself as well
as to run applications that access the database instances. For details on
the use of packages with RAC, refer to section, “Using Packages to
Configure Startup and Shutdown of RAC Instances” on page 156 located
in chapter 3.