“The machine room had been kept across the hall so that someone could always run in and pull the power cords. I doubt anyone had pictured doing it to save the servers from the goddamn sprinklers.”
A false alarm killed the cooling, and the room climbed toward a 150°F cutoff. One person pulling cords by hand stopped it at 143.6°F. It was a trading firm’s only datacenter in New York. All that money, and the failover plan was a guy in the hallway.