I mostly remember AWS S3 outages, usually limited to a region, but the one in 2017 was supposed to be a regional update (US-EAST-1 region), brought down like a

I mostly remember AWS S3 outages, usually limited to a region, but the one in 2017 was supposed to be a regional update (US-EAST-1 region), brought down like a half of AWS, because they depended on S3 in US-EAST-1 [1] Note that even the intended configuration change was designed to be Regional, not just limited to one AZ. https://aws.amazon.com/message/41926/ https://aws.amazon.com/message/41926/