Relational Database Service (RDS) is a web service that makes it easier to set up, operate, and scale a relational database in the AWS Cloud. It provides cost-efficient, resizable capacity for an industry-standard relational database and manages common database administration tasks.
- Pricing comparing instances
- RDS Instance Types based on prices Prices.
- Table Types: SQL Server, MySQL, PostgrSQL, etc..
- RDS is for OLTP workloads
- Not suitable for OLAP workloads
Multi-Az
- An exact copy of your production database in another AZ.
- Used for disaster recovery.
- In the event of failure, RDS will automatically fail over to the standby instance.
Replicas
- A read-only copy of your primary database in the same AZ.
- Used to increase or scale read performance.
- Great for read-heavy workloads and rakes the load oof your primary database.