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|Oracle Solaris Cluster Data Service for Oracle Real Application Clusters Guide|
For detailed instructions for installing the Oracle UDLM, see the Oracle RAC documentation.
Caution - Before you install the Oracle UDLM, ensure that you have created the DBA group and DBA user accounts. For more information, see How to Create the DBA Group and the DBA User Accounts.
If your Oracle RAC release requires Oracle UNIX Distributed Lock Manager (Oracle UDLM), you must install the Oracle UDLM software on the local disk of each node. To support Oracle RAC on a zone cluster node, install Oracle UDLM software on each zone cluster node.
Note - On Oracle RAC 11g release 2 only, to use native SKGXN instead of Oracle UDLM, do not install the Oracle UDLM software. Native SKGXN is automatically used if Oracle UDLM software is not installed in the cluster.
See the appropriate Oracle RAC installation documentation for instructions.
Note - 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.