Oracle Real Application Cluster (RAC) Database 18c Step by Step Installation on Full Rack Exadata X7

Hi,

I will explain Oracle Real Application Cluster (RAC) Database 18c Step by Step Installation on Full Rack Exadata X7 in this article.

If Your Grid Infrastructure version is lower than 18c version, you need to upgrade it to Oracle 18c. Grid Infrastructure versionshould be equal or higher than Database Software version.

You can read following article to Upgrade Grid Infrastructure from Oracle 11g or 12c to Oracle 18c.

Oracle Grid Infrastructure & RAC Upgrade from Oracle 12c to Oracle 18c in Full Rack Exadata X7 Step by Step -2 Oracle 18c Upgrade Steps

You can download Oracle 18c installation file from Metalink and following link.

https://www.oracle.com/technetwork/database/enterprise-edition/downloads/oracle18c-linux-180000-5022980.html

Download Database software and upload into Exadata. Unzip files and run runInstaller file to start Oracle RAC Database 18c Installation.

Select Set Up Software Only choice.

Select Oracle Real Application Clusters ( RAC ) database installation.

Select nodes in the Cluster. We have 8 nodes, so I have chosen them as following.

Click SSH Connectivity and do manual SSH Connectivity between nodes if it doesn’t exist.

Select Enterprise Edition

Type Oracle Base in this step.

Select Operating System Groups.

Verification result is done like following.

Oracle Real Application Cluster (RAC) 18c installer summary is as follows. Click Install to start.

In this step, you should run root.sh on all nodes.

root.sh is run like following. Firstly run it at the first node, then other nodes.

[root@MehmetSalih08 grid]# /u01/app18c/root.sh
Performing root user operation.

The following environment variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /u01/app18c

Enter the full pathname of the local bin directory: [/usr/local/bin]: 
The contents of "dbhome" have not changed. No need to overwrite.
The contents of "oraenv" have not changed. No need to overwrite.
The contents of "coraenv" have not changed. No need to overwrite.

Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.
[root@MehmetSalih08 grid]#

Oracle 18c RAC Database installation is completed like following.

If you want to install Oracle 19c, you can also read following Article.

Oracle Database 19c on Linux 7.6 Step by Step Installation -2

Do you want to learn Oracle Database Performance Tuning detailed, then read the following articles.

https://ittutorial.org/oracle-database-performance-tuning-tutorial-12-what-is-the-automatic-sql-tuning-and-how-to-automated-sql-tuning/