Amazon RDS supports Multi-AZ for SQL Server Developer Edition

Amazon Relational Database Service (Amazon RDS) for SQL Server has introduced Multi-AZ deployments using Always On Availability Groups for SQL Server Developer Edition. This feature maintains a synchronous standby replica in a separate Availability Zone, ensuring automatic failover during infrastructure failures. The capability allows developers to build and test high availability configurations in non-production environments without incurring licensing fees, as Developer Edition includes all Enterprise Edition functionality at no cost.

The new Multi-AZ support is available for SQL Server Developer Edition major versions 2019 and 2022, as well as SQL Server 2025 Enterprise Developer Edition. SQL Server 2025 Standard Developer Edition does not include this feature. Users can leverage this functionality to validate high availability architectures, test failover behavior, and develop against production-equivalent configurations without additional licensing expenses.

To implement Multi-AZ deployments, users can enable the feature through the Amazon RDS console or AWS CLI. The process involves selecting the Multi-AZ option during database instance creation or modification, ensuring the standby replica is automatically provisioned in a different Availability Zone. This setup provides a reliable testing environment for high availability strategies before deployment to production.

For further details on supported AWS Regions and pricing, users can refer to the AWS documentation on Working with SQL Server Developer Edition on RDS for SQL Server and Amazon RDS for SQL Server Pricing. The feature expands testing capabilities while maintaining cost efficiency for SQL Server environments.