S3 Went Down — What's the Real Uptime Percentage and What Should I Do?

https://s3.amazonaws.com/column/how-high-traffic-online-platforms-use-amazon-s3-for-secure-scalable-data-storage/index.html

6 Critical Questions About S3 Uptime, Outages, and SLAs You want straight answers: how often does S3 actually fail, what does AWS promise, and how should you protect your systems when S3 misbehaves? I’ll answer the specific questions that