Relational Database Service

• Manager service by AWS
• Automated provisioning, OS patching
• Continuous backups and restore to specific timestamp
• Monitoring dashboards
• Read replicas for improved read performance
• Multi AZ setup for DR
• Maintenance window for upgrades
• Can sale - vertical and horizontal
• Storage backed by EBS
• Cannot ssh into DB instances
• DATABASES supported:
  • PostgresSQL
  • MySQL
  • MariaDB
  • Oracle
  • Microsoft SQL Server
  • IBM DB2
  • Aurora (AWS Proprietary)

RDS STORAGE AUTOSCALING

• Storage can auto scale
• All RDS database engines support
• Can set max storage threshold
• Automatically modify storage if :
  • free storage is less than 10% of allocated storage
  • low storage lasts more than 5 minutes
  • 6 hours have passed from the last storage modification

RDS Read Replicas

• For scaling read requests