RDS Option Group

RDS Option Groups in AWS allow users to customize their Amazon Relational Database Service (RDS) instances. They provide a mechanism for modifying how RDS operates and enables the use of advanced features such as read-only replicas, high availability, automated backups, and Multi-AZ deployments. Option groups enable users to easily change settings on an existing RDS instance without having to recreate it from scratch. With an option group, users can also add additional features or modify existing ones without downtime.