Medium RDS Regional

RDS DB instances should be configured with multiple Availability Zones

NIST

Description

Checks if RDS instances are configured with multiple Availability Zones. This check also fetches the tags associated with each RDS instance.

To configure the identified RDS DB instance for multiple Availability Zones, follow these steps:

Sign in to the AWS Management Console and open the Amazon RDS console.
In the navigation pane, choose 'Databases'.
Select the identified RDS DB instance that needs to be configured for multiple Availability Zones.
Choose 'Modify'.
In the 'Availability & Durability' section, find the 'Multi-AZ deployment' option.
Select the 'Create a standby instance (recommended for production usage)' option to enable Multi-AZ deployment.
Scroll to the bottom of the page and choose 'Continue'.
On the summary page, review your changes. You can choose to apply them immediately or during the next scheduled maintenance window.
Click 'Modify DB Instance' to apply the changes.

NIST