Tutorials System Design Tutorial
Backup and Restore Architectures — Complete Guide
Backup and Restore Architectures — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of System Design Tutorial on Toolliyo Academy.
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System Design Tutorial · Lesson 38 of 100
Backup and Restore Architectures
Basics ✓ → Scale → Interview
Scale · 2 — Distributed · ~6 min · Module 4: Caching and Storage
What is this?
Backup architecture defines what is copied, how often, where it is stored, and how restore drills prove it works.
Why should you care?
ShopNest ransomware or bad migration needs a tested restore, not a hope.
See it live — copy this example
Sketch the architecture on paper. These lessons focus on concepts and trade-offs.
Postgres: full nightly + WAL continuous → object storage
RPO target: ≤ 5 minutes
RTO target: ≤ 1 hour for checkout DB
Quarterly: restore to isolated account and run smoke testsRun Example »
This lesson uses terminal or setup steps. Run commands on your computer — the live editor appears on coding lessons.
What happened?
- RPO/RTO drive frequency and tooling.
- Untested backups are fiction.
- Keep backups off the same blast radius as production disks.
Practice next
- Write ShopNest RPO/RTO for Orders DB.
- Store backups in a separate account/region.
- Schedule a restore drill.
- Automate backup success alerts.
- Document who declares restore.
Remember
RPO/RTO first. Offsite copies. Drill restores.
Quarterly restore game day
ShopNest restores Orders DB to a scrubbed lab.
Outcome: Gaps in runbooks fixed before a real outage.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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