Re: chillers
Problem is that even this isn't an infallible solution. We had such an incident back in the mid 2000s at a company I worked at. The server room only had 3 racks and about a dozen pedestal servers, and had dual air-con units.
Late one afternoon, someone managed to turn one of the air-con units off accidentally. The second air-con unit continued operating, but was an old model and not particularly powerful. During the evening and night, the temperature slowly but steadily increased. Meanwhile, the old air-con unit was running increasingly flat out trying to control the rising temperature until finally it had enough and blew in the early hours of the morning.
We came in at 8am to sauna-like conditions in the server room due to an "off" air-con unit and a dead one...
Biting the hand that feeds IT
