[jrockway]

If your plan to avoid downtime is to prevent power outages, you're going to have downtime. All their sentence says is they can't prevent power outages. That's fine, because the other 1/nth of your servers are on a different power grid in a different state.

[tonylxc]

I totally share the same view that to best avoid failure is to embrace it and cope with it.

It is true that all their sentence is about recovery, however, it is disappointing that they didn't mention anything about a redundant datacenter.