Air is out in server closet, not going to be fixed until tomorrow… What to do?

We are a small company, so we have a small closet with one server rack. This closet has very good ventilation, so that’s not a problem – but today the air went out on this side of our company suite. It didn’t occur to me until just now, that means the closet is very hot, and indeed I came in to find the servers all with fans on full blast and the temperature in there quite hot, and I haven’t yet checked if all the servers are up.

I opened the door, but for security purposes I can’t leave it open so I’ll have to close it when I leave in an hour or so. All the servers are running Windows; there are a couple towers (those are probably cut off by now from the heat, I would imagine) and basically the rest of the rack is full of rack servers.

I need to keep these servers running in the morning. They contain all our vital functions – network data storage, email, intranet, accounting, etc. Not much can be done without them up.

What do I do??

We had a similar issue; server room ambient temperature was about 33 degrees if I remember. Was like that for at least 2 or 3 days. No issues with the servers, various temp readings on the server’s chassis/core/etc. were maybe 8-10 degrees hotter than normal, but no errors, no shutdowns. We ended up putting a big fan facing out from the server room to draw out the hot air, however.

Monitor the temperatures closely, react accordingly (turn them off or at least non-critical servers).

EDIT

Asked co-worker, he said the hottest it ever got was 33 (and dropped to 28-29 when we put the big fan in the door).

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