How to Install the UDLM Software

You must install the UDLM software on the local disk of each node.

1. Become superuser on a cluster member.

2. Install the UDLM software.

   See the appropriate OPS installation documentation.

3. Update /etc/system with the shared memory configuration information.

   You must configure these parameters based on the resources available in the cluster. Decide on the appropriate values, but be sure that the UDLM can create a shared memory segment according to its configuration requirements. The following is an example of the entries to configure in /etc/system.

   *SHARED MEMORY/ORACLE set shmsys:shminfo_shmmax=268435456 set semsys:seminfo_semmap=1024 set semsys:seminfo_semmni=2048 set semsys:seminfo_semmns=2048 set semsys:seminfo_semmsl=2048 set semsys:seminfo_semmnu=2048 set semsys:seminfo_semume=200 set shmsys:shminfo_shmmin=200 set shmsys:shminfo_shmmni=200 set shmsys:shminfo_shmseg=200 forceload: sys/shmsys forceload: sys/semsys forceload: sys/msgsys

4. Shut down and reboot all the nodes.

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   Caution -

   Before you reboot, ensure that the VxVM software is installed correctly and the license for cluster operation is valid. Also ensure that the UDLM software is installed and configured correctly. Otherwise, a panic occurs.

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   See the scshutdown(1M) man page for details.

   First, run the following command on one node to shut down all of the nodes.

   phys-schost-1# scshutdown -g0 -y

   For each node, run the following command at the ok prompt.

   ok boot

Where to Go From Here

After you have installed the UDLM software on each cluster node and rebooted all the nodes, install the Oracle RDBMS software. See the OPS installation documentation for instructions.