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Sun Cluster 3.0 Data Services Installation and Configuration Guide

Installing the Oracle Software

Use the procedures in this section to do the following:

How to Prepare the Sun Cluster Nodes

For the UDLM software to run correctly, sufficient shared memory must be available on all cluster nodes. See the OPS CD for all installation instructions. To prepare the Sun Cluster nodes, you must ensure that:

Perform the following steps as superuser on each cluster node.

  1. On each node, create an entry for the database administrator group in the /etc/group file and add potential users to the group.

    This group normally is named dba. Verify that root and oracle are members of the dba group and add entries as necessary for other DBA users. Verify that the group IDs are the same on all the nodes that run Sun Cluster HA for Oracle Parallel Server. For example:


    dba:*:520:root,oracle

    You can make the name service entries in a network name service (for example, NIS or NIS+) so that the information is available to Sun Cluster HA for Oracle Parallel Server clients. You can also make entries in the local /etc files to eliminate dependency on the network name service.

  2. On each node, create an entry for the Oracle user ID (the group and password) in the /etc/passwd file and run the pwconv(1M) command to create an entry in the /etc/shadow file.

    This Oracle user ID is normally oracle. For example:


    # useradd -u 120 -g dba -d /orahome oracle

    Ensure that the user IDs are the same on all the nodes that run Sun Cluster HA for Oracle Parallel Server.

Where to Go from Here

After setting up the cluster environment for OPS, install the UDLM software on each cluster node. For instructions, see your OPS installation documentation.

How to Install the UDLM Software

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

  1. Become superuser on a node in the cluster.

  2. Install the UDLM software.

    Refer to 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.

    Caution - Caution -

    Before rebooting, 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.

    Refer to scshutdown(1M) for details.

    First, shut down all of the nodes by typing the following command on one node:


    phys-schost-1# scshutdown -g0 -y

    For each node, type 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. For instructions, see the OPS installation documentation.

How to Install the Oracle RDBMS Software

Refer to your OPS installation documentation for instructions on installing the RDBMS software.

Where to Go from Here

When installing the Oracle RDBMS software, create your Oracle database by using the instructions in the Oracle documentation.