Comment by lillecarl

Where I've worked and we've been in the cloud I've always promoted just running in one AZ, I run my own things in one Hetzner DC (hel1). I've done hybrid cloud as well and in that case we only have one AZ for the on-premise stuff anyways (plus offsite backup)

That one time when an AZ goes down and your infra successfully fails over to the other two isn't worth it for a lot of my scale companies, ops consultants seem to be chasing high cloud spend to justify their own high cost. I also factor in that I live in Sweden where most infrastructure outages are exceptionally rare.

Ofc it depends on what kind of company you are and what you're providing.