4 Oracle Real Application Clusters Postinstallation Procedures

4.1.1 Download and Install Patch Updates

Refer to the My Oracle Support Web site for required patch updates for your installation.

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To download required patch updates:

1. Use a Web browser to view the My Oracle Support Web site:

   https://support.oracle.com

2. Log in to My Oracle Support.

   Note:

   If you are not a My Oracle Support registered user, then click Register for My Oracle Support and register.

3. On the main My Oracle Support page, click Patches & Updates.

4. In the Patches section, click Simple Search.

5. Specify the following information, then click Go:

   • In the Search By field, select Product or Family, and then specify RDBMS Server.

   • In the Release field, specify the current release number.

   • In the Patch Type field, specify Patchset/Minipack.

   • In the Platform or Language field, select your platform.

6. In the Results list, find the latest patch set for Oracle Database.

   Patch sets for Oracle databases are identified in the Description column as Product:Patchset x.x.x.x PATCH SET FOR ORACLE DATABASE SERVER.

7. In the Patch column, click the number of the patch that you want to download.

8. On the Patch Set page, click View README and read the page that appears. The README page contains information about the patch set and how to apply the patches to your installation.

9. Return to the Patch Set page, click Download, and save the file on your system.

10. Use the unzip utility provided with Oracle Database 11g release 2 (11.2) to uncompress the Oracle patch updates that you downloaded from My Oracle Support. The unzip utility is located in the $ORACLE_HOME/bin directory.

4.1.2 Set External Jobs Ownership for Installations on HP-UX

On HP-UX platforms only, complete the following procedure to set external jobs ownership to the low-privilege user extjob:

1. Log on as root.

2. Change directory to the Oracle Database Oracle home:

   # cd $ORACLE_HOME/rdbms/admin/
   

3. Open externaljob.ora with a text editor, and find the parameters run_user and run_group.

4. Set run_user to the external jobs user (extjob), and set run_group to a low-privileged group, such as other. For example:

   run_user=extproc
   run_group=other
   

5. Save the file.

   Note:

   Modify externaljob.ora only as root.

4.1.3 Configure Oracle Products

Many Oracle products and options must be configured before you use them for the first time. Before using individual Oracle Database 11g release 2 (11.2) database products or options, refer to the manual in the product documentation library which is available in the DOC directory on the Oracle Database installation media, or on the OTN Web site.

4.1.4 Relocate Instance-Related Memory-Mapped files from OCFS2 Using Symbolic Links

If you install Oracle RAC on a standard local file system, then you do not need to read this section.

On Linux, if your Oracle RAC installation is created on OCFS2, and the version of OCFS2 that you are using is earlier than 1.4.1. then you must complete the following task to continue to use that version.

On OCFS2 versions earlier than 1.4.1, you must relocate the healthcheck files (*.dat) that typically reside in $ORACLE_HOME/dbs to a local file system, and create symbolic links to it from the original path. This is required because these OCFS2 versions for Linux do not support shared writable map access that the Oracle software uses to manipulate the healthcheck files.

To relocate the files:

1. Stop the Oracle Database instance.

2. Move the $ORACLE_HOME/dbs/*.dat files to a directory on a local file system.

3. Create symbolic links from the $ORACLE_HOME/dbs directory to the *.dat files on the local file system.

4. Restart the Oracle Database instance.

4.2.1 Recommended Database Postinstallation Tasks

Oracle recommends that you complete the following tasks after installing Oracle RAC:

• Back Up the root.sh Script

• Set the Oracle User Environment Variables

• Recompile all PL/SQL modules

• Set Up User Accounts

export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=/u01/app/oracle/11.2.0/dbhome_1
export PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_SID=sales1