Overview of the RAC Framework Resource Group
The RAC framework resource group enables Oracle RAC to run with Sun Cluster. This resource group contains an instance of the following single-instance
SUNW.rac_framework, which represents
the framework that enables Oracle RAC to be managed by using Sun Cluster commands
SPARC: SUNW.rac_udlm, which represents the UNIX Distributed Lock Manager (Oracle UDLM) component of Sun Cluster Support for Oracle RAC
In addition, the RAC framework resource group contains an instance of a single-instance resource type that represents the volume manager that you are using for Oracle files, if any.
The resource types that are defined for the RAC framework resource group do not enable the Resource Group Manager (RGM)
to manage instances of Oracle RAC.