[Cialug] Slightly OT: Server Room Temperature

[Sean McClanahan]

We keep our room between 65 and 70.  10 racks and a 65 kVA UPS, plus a 5 ton and 3 ton AC unit, all in the room.

It is crowded.  :-)

Before we got the 5 ton unit installed, we had just the 3 ton unit.  It was barely keeping up with the heat production.  It failed one evening, and it took about 30 minutes for the room to reach 90 degrees.  We didn't lose anything, fortunately.  I began shutting down non-critical servers, and we fired up a portable unit that we keep on hand for just such an emergency.  But all of the fans that have their speed controlled by temperature were definitely running on the fast setting; there was more fan noise in there than I had ever heard.

When the company came out for PM on the UPS last month, they told me that it is possible to keep a data center TOO cold.  The UPS doesn't want to see temps below 60 degrees, or it gets harder on the batteries.

Sean


-----Original Message-----
From: cialug-bounces at cialug.org [mailto:cialug-bounces at cialug.org] On Behalf Of Jonathan C. Bailey
Sent: Friday, September 14, 2007 12:16 PM
To: Central Iowa Linux Users Group
Subject: [Cialug] Slightly OT: Server Room Temperature

Slightly OT, but I want to get an opinion on this....


What would you define as "too hot" for a small server room? Also, realistically, at what point would the temperature be high enough to affect life or performance of modern hardware?



-Jon
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