Relational Database Services
- manage DB using SQL
- allow you to create databases in the cloud that are managed by aws
- Postgres, MySQL, Maria DB, Oracle, Microsoft SQL Server, Aurora
Storage Auto Scaling
- when detect you run out of free database storage, it scales automatically
- you have to set maximum storage threshold
RDS Read Replica
- if cross region, then need to pay extra fee
- the Read Replicas be setup as Multi AZ for Disaster Recovery (DR)
