[acdha]

That assumes the only causes of failure are environmental. I’ve definitely seen plenty of hardware failures but software failures are common, too, and keeping things synchronized is going to require more than “any people and processes” - that’s how you learn your backup has never been tested and database replication stopped working 3 days before the failure.

[pantulis]

Not forgetting operational failures due to human mistakes when doing delicate stuff on complex environments, and setting up on-prem infra to work like a hyperscaler does... well, it's not easy.

[acdha]

Yeah, if they’ve actually tried that approach well, I hope their luck holds but I wouldn’t bet on it.