Availability & Reliability Basics — Roadmap Step & Resources
Uptime, redundancy, single points of failure and the 'nines' of availability
- Level: beginner
- Estimated time: 1 days
- Roadmap: System Design
Before this step
Interview questions
- What does 'five nines' availability mean in terms of downtime per year?
Study resources
- Availability (Article) — The System Design Primer's coverage of availability patterns and the 'nines' of uptime.
- Availability in Distributed Systems (Video) — A practical explanation of measuring and designing for availability in distributed systems.
Part of
- Core System Design Concepts — section
- System Design roadmap — the full learning path