For the Oracle UDLM software to run correctly, sufficient shared memory must be available on all of the cluster nodes. See the Oracle Parallel Server/Real Application Clusters CD-ROM for all of the installation instructions. To prepare the Sun Cluster nodes, check that you have completed the following tasks.
You have correctly set up the Oracle user account and database administration group.
You have configured the system to support the shared memory requirements of the Oracle UDLM.
Perform the following steps as superuser on each cluster node.
This group normally is named dba. Verify that root and oracle are members of the dba group, and add entries as necessary for other database administrator (DBA) users. Verify that the group IDs are the same on all of the nodes that run Sun Cluster Support for Oracle Parallel Server/Real Application Clusters. For example, add the following entry to the /etc/group file.
You can make the name service entries in a network name service, such as the Network Information Service (NIS) or NIS+, so that the information is available to the data service clients. You can also make entries in the local /etc files to eliminate dependency on the network name service.
This Oracle user ID is normally oracle. For example, add the following entry to the /etc/passwd file.
# useradd -u 120 -g dba -d /oracle-home oracle
Ensure that the user IDs are the same on all of the nodes that run Sun Cluster Support for Oracle Parallel Server/Real Application Clusters.
After you set up the cluster environment for Oracle Parallel Server/Real Application Clusters, go to How to Install the Oracle UDLM Software to install the Oracle UDLM software on each cluster node.