Part 3: Sweat the small stuff — Building a 5–nines (99.999%) Available Platform

Thank you for coming back to read Part 3. We discussed the Math behind the 5–9’s platform in Part 2 and the context in Part 1.

We will discuss some of the critical aspects of building and maintaining a 5-nines platform in this part of the series. We discussed the step-wise increasing complexity of keeping the platform available and achieving a goal of fewer than 5 minutes of downtime in a year. This goal is not going to be possible if we don’t focus on the smallest of details.