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

By Bhavin Hingu

bhavin@oracledba.org

 

 

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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


        

welcome screen

Click Next

2

Select "Custom" and Click Next.

3

Click Next

4

Select all the nodes and Click Next

5

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

6


Click Next

7

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

8

Select "Install database Software Only" and Click Next

9

Click Install

10

11

Execute the mentioned script on all the nodes.

12


13


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.

 



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