- Option Groups: Option Groups let you enable and configure extra features for your RDS instances, such as high availability, read replicas, performance boosts, and encryption. You can link multiple option groups to one RDS instance, and each can have many options. They help activate specific features that aren’t enabled by default. You can create your own option groups or use ones provided by AWS.
- Parameter Groups: Parameter Groups help manage configuration settings for your RDS instances, controlling aspects like memory, optimization, logging, and caching. Each RDS instance is linked to one parameter group, which contains the settings that define its behavior. You can adjust these settings to enhance the performance, security, and resource use of your RDS instances. You can use pre-set parameter groups from AWS or create your own based on your needs.