Guide · Reliability
Database Backup Never Tested: The Risk
You have automated backups. But have you ever restored from them? Here's why that's dangerous and how to fix it.
Never-tested restores are a Reliability gate miss—schedule and record a restore test. Primary control: Reliability & Continuity
Nightly snapshots ≠ proven recovery
RDS (or any) automated backups can run for years without anyone restoring one. Corruption, wrong retention, or a missing runbook only show up when production is already hurt. APRF Reliability & Continuity treats a successful restore drill as the pass condition.
A startup trusted RDS backups for two years. A bad migration forced a restore; the needed window was unusable. They fell back older and lost hours of data. Quarterly restore to a new instance would have failed the drill earlier—when it was cheap.
What "tested" means
Restore to a non-prod instance. Check row counts and an app smoke path. Time it against RTO; note the restore point vs RPO. Write the steps in a runbook so on-call is not inventing CLI flags at 2am.
Cadence: at least quarterly for critical DBs; monthly if the data is high-churn or regulated.
Put it on the calendar
Script the drill. Store the last green date beside the backup policy. Failed drills are incidents for the backup system—not notes to "try again someday."
Next: Reliability & Continuity
Open the related pillar specification for mandatory checks, artifacts, and pass conditions. Self-attest is optional.
Related
Frequently asked questions
- What happens if I never test database backups?
- You may discover too late that backups are corrupted, incomplete, or the restore process doesn't work. Testing reveals issues before a real disaster.
- How often should I test database backups?
- For critical production systems, test restores at least quarterly—monthly if data is highly sensitive. The key is to test before you need to.
- What should I verify when testing backups?
- Restore to a separate environment. Verify data integrity (row counts, checksums). Document the steps. Ensure the process is repeatable and not dependent on one person.