Rule: RDS DB Instance Multiple AZ Should Be Enabled
This rule ensures that RDS DB instances have multiple AZ enabled for contingency planning.
| Rule | RDS DB instance multiple az should be enabled |
| Framework | FedRAMP Low Revision 4 |
| Severity | ✔ Low |
Rule Description
This rule enforces that multiple Availability Zone (AZ) deployment is enabled for an RDS (Relational Database Service) DB instance, as per the requirements of FedRAMP Low Revision 4 compliance. Multiple AZ deployment helps ensure high availability and durability of the database by maintaining replicas in different physical locations.
Troubleshooting Steps
- 1.Verify the current configuration of the RDS DB instance to determine if multiple AZ deployment is enabled.
- 2.If multiple AZ deployment is not enabled, follow the remediation steps to enable it.
Remediation Steps
To enable multiple AZ deployment for an RDS DB instance, follow the steps below:
- 1.Open the AWS Management Console and go to the Amazon RDS service.
- 2.Select the region where the RDS DB instance is located.
- 3.From the left-hand menu, click on "Databases."
- 4.Find and select the specific RDS DB instance that needs the configuration change.
- 5.Click on the "Instance actions" button and choose "Modify."
- 6.In the "Network & Security" section, locate the "Multi-AZ deployment" option.
- 7.Enable the "Multi-AZ deployment" by selecting the checkbox.
- 8.Review any other configuration changes you want to make and ensure they comply with FedRAMP Low Revision 4 requirements.
- 9.Click on the "Apply immediately" option (or schedule the change for the appropriate maintenance window).
- 10.Finally, click on "Modify DB instance" to apply the changes.
Note
Make sure to test the application's compatibility and performance after enabling multiple AZ deployment, as it may affect the database performance due to the additional replication overhead.
Conclusion
Enabling multiple AZ deployment for the RDS DB instance ensures high availability, fault tolerance, and compliance with the FedRAMP Low Revision 4 requirements. Follow the step-by-step guide to enable this feature for your RDS DB instance and ensure your database's durability and availability.