Reliability Reviews, PRR, and Disaster Recovery
Learn senior SRE design work: reliability reviews, FMEA, production readiness reviews, RTO and RPO, and multi-region disaster recovery you can prove.
What You'll Learn
Understanding Why Design-Time Reliability Matters Most
acme-shop is growing, and you are no longer only fixing what breaks.
Reading a Design Document for Failure Modes
A software engineer reads a design for correctness. An SRE reads the same document for failure modes.
Scoring Risks with FMEA and Detectability
Questions find risks. FMEA helps you decide which ones to fix first.
Running a Production Readiness Review
A production readiness review (PRR) is a structured review that every service passes before it joins the on-call rotation.
Setting RTO and RPO with the Business
Recovery targets look like technical numbers but they are business decisions. Your job is to present options with costs, not to pick the number.
Designing Multi-Region and Replication
Multi-region is where recovery targets force the most expensive and complex choices. You should know the trade-offs even if you never build one.
Skills You'll Master
Curriculum Index10 topics
Understanding Why Design-Time Reliability Matters Most
acme-shop is growing, and you are no longer only fixing what breaks.
Reading a Design Document for Failure Modes
A software engineer reads a design for correctness. An SRE reads the same document for failure modes.
Scoring Risks with FMEA and Detectability
Questions find risks. FMEA helps you decide which ones to fix first.
Running a Production Readiness Review
A production readiness review (PRR) is a structured review that every service passes before it joins the on-call...
Setting RTO and RPO with the Business
Recovery targets look like technical numbers but they are business decisions.
Designing Multi-Region and Replication
Multi-region is where recovery targets force the most expensive and complex choices.
Proving Disaster Recovery with Drills
A recovery plan you have never run is a hypothesis. The only way to know your real RTO and RPO is to measure them.
Building the Hands-On Reliability Review Lab
đź“Ś Remember: This lab runs in the local sre-lab kind cluster and costs nothing. Allow about 60 minutes.
Quick Reference and Common Mistakes
Quick reference Common mistakes Skipping the SLO conversation at design time and adding monitoring after launch is the...
What You Built and What Comes Next
You learned to read a design for failure modes, score risks with FMEA and detectability, and run a production readiness...
Career Impact
Roles that use the skills in this module.
Site Reliability Engineer
DevOps Engineer
Platform Engineer
Next Modules
Related Guides
Practice on the Coding Sheet
Not a software engineer sheet. Every problem comes from real DevOps, SRE, Platform and Cloud interviews, from your first script to a system you build yourself.
Open the Coding SheetFrequently Asked Questions
A production readiness review (PRR) is a structured conversation held before a service joins the on-call rotation. It checks observability, capacity, reliability, operability, and security so the on-call engineer can run the service safely without its author.
RTO is how long the business can accept the service being unavailable. RPO is how much recent data the business can accept losing. They are business decisions with a cost, and they decide how much architecture you need.
A failure you cannot see is more dangerous than one that pages you at once. Scoring how hard each failure is to detect pushes silent failures, like a slowly filling disk, to the top of the list.
You run a drill, time it, and compare the measured recovery time and data loss with your targets. A plan that has never been drilled is only a hypothesis.