I'm setting up automated backups for EC2 instances and RDS/Aurora databases and want a practical, cost-conscious approach. I've considered scheduled snapshots, but I'm not sure how to automatically delete snapshots older than a set retention period, such as a rolling seven days. AWS Backup appears to offer scheduling and lifecycle policies, so I'm trying to understand how it compares with managing snapshots manually in terms of cost, flexibility, and production best practices. What approach would you recommend for daily backups, automatic retention cleanup, and keeping storage costs under control?
4 Answers
Aurora deserves some extra attention when estimating costs. Its built-in automated backups can cover point-in-time recovery for the configured backup window, while AWS Backup or manual snapshots can be used for longer-term or cross-account retention. Snapshot behavior and storage charges can differ, especially with frequent or long-lived Aurora snapshots, so test the policy and review the estimated storage before applying it broadly.
For this use case, AWS Backup is easier to operate than building your own snapshot automation. It supports centralized policies across EC2 and RDS/Aurora, scheduled backups, retention rules, and backup vaults. The main cost is still the underlying backup storage and snapshot activity, so monitor usage and avoid retaining more recovery points than you need.
The service itself isn’t usually the main concern; storage, backup transfer, and retained recovery points are. A short lifecycle such as seven days and regular cost monitoring should help keep it predictable.
Whichever tool you choose, validate the recovery process rather than only checking that backups completed successfully. Periodically restore an EC2 instance and an RDS/Aurora database in a test environment, verify that the applications work, and document the recovery steps. A seven-day retention policy is useful only if the backups are actually restorable.
AWS Backup is probably the simplest fit here. Create a backup plan with a daily schedule, assign your EC2 instances and RDS/Aurora resources, and set the lifecycle to retain recovery points for seven days. The service handles expiration automatically, so you don’t need separate cleanup scripts or scheduled functions.
That makes sense. I was mainly worried that using a managed service would add a large extra charge compared with creating snapshots directly.