Robert G. Brown rgb at
Thu Jul 18 17:19:34 PDT 2002

On Thu, 18 Jul 2002, Andre Lehovich wrote:

> We just had the campus cooling guy visit to prepare a cost
> estimate.  He wanted to know if we want to regulate humidity
> along with temperature.  A humidifier helps avoid static
> electricity problems.  (We're in the desert, so even before
> A/C the relative humidity is low.)
> What are other cluster builders doing -- are you buying
> humidifiers along with the air-conditioners?

Round these parts our problem is the opposite.  If I waved a shirt
around outside for ten minutes right now, I could probably wring a
thimbleful of water out of it.  Both temperature and humidity are in the

In the winter, though, it can be quite dry.  We didn't get a humidifier,
but a) I always ground myself before handling hardware; b) one almost
never has to handle hardware in a well-burned in cluster room.  In fact,
weeks pass with no human even looking in at the nodes (except maybe by


Robert G. Brown	             
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at

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