Installation of Oracle 11g R1 (11.1.0.6) Real Application Cluster (RAC) Software on Linux (CentOS EL 4 Update 5 x86)

This document explains the step by step process of installing Oracle 11g R1 RAC for DB home using OUI.

Start the runInstaller as oracle user from any one node after setting appropriate oracle base (/u01/app/oracle).

[oracle@node1-pub ~]$ export ORACLE_BASE=/u01/app/oracle
[oracle@node1-pub ~]$ 11g_database/database/runInstaller

        

Click Next


Select "Custom" and Click Next.


Click Next


Select all the nodes and Click Next


At this step, you should not receive any error. If you have configured the Pre-Installation
steps correctly, then you will not get any errors. I get one warning here as you can see which
is complaining about the low memory than required. I had only 512 MB ram and the required memory
is 1GB but I would not worry about this warning and will check the status box.

Click Next



Click Next


Leave the Default values (dba, dba) and Click Next


Select "Install database Software Only" and Click Next


Click Install



Execute the mentioned script on all the nodes.





At this time, create an env file  on all the nodes with the appropriate value of ORACLE_HOME and PATH.

oracle@node1-pub ~]$ cat .bash_profile
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

unset USERNAME

export CRS_HOME=/u01/app/crs
export ASM_BASE=/u01/app/asm
export ASM_HOME=$ASM_BASE/product/11gr1
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11gr1
PATH=$PATH:$CRS_HOME/bin:$ORACLE_HOME/bin
export PATH

# The below piece of code avoid the RAC installation error due to stty

if [ -t 0 ]; then
   stty intr ^C
fi

umask 022

At this point, we are ready to create a RAC database next.