If the data is that critical, surely you would be backing it up frequently and also mirror it on at least one geographically separate server?
I use a single server at OVH, and I'm not in the affected DC, but if this DID happen to me I could get back up and running fairly quickly. All our data is mirrored on S3 and off site backups are made frequently enough it wouldn't be an issue.
Plus, you still need to plan for a scenario like this even with AWS or any other cloud provider. It is less likely to happen with those, given the redundancy, but there is still a chance you lose it all without a backup plan.
I use a single server at OVH, and I'm not in the affected DC, but if this DID happen to me I could get back up and running fairly quickly. All our data is mirrored on S3 and off site backups are made frequently enough it wouldn't be an issue.
Plus, you still need to plan for a scenario like this even with AWS or any other cloud provider. It is less likely to happen with those, given the redundancy, but there is still a chance you lose it all without a backup plan.