You must install the Oracle UDLM software on the local disk of each node.
Become superuser on a cluster node.
Install the Oracle UDLM software.
See the appropriate Oracle Real Application Clusters installation documentation for instructions.
Ensure that you did not receive any error messages when you installed the Oracle UDLM packages. If an error occurred during package installation, correct the problem before you install the Oracle UDLM software.
Go to Registering and Configuring the RAC Framework Resource Group.