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Sun Cluster 3.0 U1 Data Services Installation and Configuration Guide

Installing the Oracle Software

Use the procedures in this section to perform the following tasks.

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, check that the following tasks have been completed.

Note -

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 the Sun Cluster HA for Oracle Parallel Server data service. For example, add the following entry to the /etc/group file.


    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, 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 the nodes that run the Sun Cluster HA for Oracle Parallel Server data service.

Where to Go From Here

After you set up the cluster environment for OPS, install the UDLM software on each cluster node. See your OPS installation documentation for instructions.

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.

    Caution - 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.

    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.

How to Install the Oracle RDBMS Software

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

Where to Go From Here

See the instructions in the Oracle documentation to create your Oracle database when you install the Oracle RDBMS software.