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Oracle DBA Training & Support
Aug 182 min read

Oracle 19c RAC Installation on Linux 9.4 - The Ultimate Step-by-Step Guide

Introduction


In today's rapidly evolving tech landscape, ensuring high availability and scalability is paramount for any database-driven application. Oracle Real Application Clusters (RAC) offer a robust solution to achieve this by allowing multiple servers to access a single database, providing both failover and load balancing. In this comprehensive guide, we will walk you through the process of installing Oracle 19c RAC on Linux 9.4. Both versions are the latest as of August 2024, making this tutorial a must-read for any Oracle DBA aiming to stay ahead in the field.


Why Oracle 19c RAC on Linux 9.4?


Oracle 19.24 is the most recent and stable release, packed with new features and improvements that enhance database performance, security, and manageability. Coupled with Oracle Linux 9.4, known for its enterprise-grade reliability and security, this combination ensures your database setup is both cutting-edge and resilient.


Prerequisites


Before diving into the installation, ensure that your environment meets the following prerequisites:


- Oracle Database Version: 19.24
- Operating System: Oracle Linux 9.4
- Hardware Requirements: Ensure your servers have sufficient CPU, memory, and storage for a two-node RAC setup.

Step-by-Step Installation Guide


1. Download and Prepare Software

- Download the necessary software, including Oracle Grid, RDBMS 19c, and Oracle Linux 9.4 ISOs.

- Install VirtualBox and MobaXterm for setting up the virtual environment.


2. Configure the Linux Environment


- Install Linux prerequisites and configure user accounts, groups, and permissions.

- Set up kernel parameters, security limits, and network configurations for RAC.


3. Set Up ASM Disks and UDEV Rules

- Create ASM disks and configure UDEV rules for disk management.


4. Install Oracle Grid Infrastructure

- Install and configure Oracle Grid Infrastructure, including patching to the latest version.


5. Install Oracle Database 19c

- Run the Oracle Universal Installer to install Oracle 19c and apply the latest patches.


6. Create the RAC Database

- Use DBCA to create and configure the Oracle RAC database.


🎥 Watch Now: Complete Step by step guidance in this video:




Post-Installation Best Practices


After installation, it’s crucial to verify that all components are functioning correctly:

- Check Cluster Status: Use `crsctl` commands to check the status of the cluster and its components.

- Monitor Performance: Regularly monitor the performance of the RAC setup using Oracle’s tools.

- Apply Patches Regularly: Keep your environment up-to-date with Oracle’s quarterly patches.


Conclusion


Oracle 19c RAC on Linux 9.4 is a powerful combination for any enterprise looking to ensure high availability and scalability of their database systems. By following this step-by-step guide, you can set up a robust RAC environment that meets modern enterprise demands.


If you have any questions or need further assistance, feel free to reach out. Stay tuned for more tutorials and insights on Oracle database management!



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