Vertical Scaling: Change DB instance type and scale storage

Storage and compute changes are applied during maintenance window

You can also choose to “apply-immediately”

RDS would take care of data migration

Takes a few minutes to complete

Scaling limits:

MySQL, MariaDB, Oracle, and PostgreSQL engines - 64 TB

SQL Server - 16 TB

Aurora - 128 TB

RDS also supports storage auto scaling

Horizontal Scaling

Configure Read Replicas

Aurora: Single master - One writer & multiple readers, Multi master

deployment