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Re: Data Center AC Issues
From: Joel Jaeggli <joelja () darkwing uoregon edu>
Date: Mon, 24 Sep 2001 19:54:40 -0700 (PDT)


my general approach has been to deploy relativly inexpensive
temperature/humidity logging devices in places where we have "issues", and
have our hvac folks rebalance some of our ac in that direction... in some
cases moving hardware within racks, removing obstructions under our raised
floors adding exhaust fan to racks has all helped with spot tempurature
issuee...

I can't really recomend a contracter, but I can recomend a temperature
/humidity probe which might be a set in terms of establishing where the
problem areass are...

http://www.picotech.com/humidity.html

connects to a serial port has linux and windows drivers requires no
external power, costs $215. I either connect it to a convenient machine or
hang it off a laptop and place it in the location I am concerned about.

picotech also sells 8 channel thermocouple loggers which I haven't played
with...

regards
joelja

On Mon, 24 Sep 2001 ainman () umich edu wrote:



Can anyone recommend an expert Troubleshooting/Design firm that has
extensive experience with Data Center specifici AC issues?

We have a strange problem (probably with the airflow/vents/arrangements) which
has machines in various locations dying due to heat, when the ambient temp
isn't above 90.

I've tried to find folks to deal with this and I get:

a)    Sales Rep's who want me to upgrade the entire system
b)    Folks who don't have Data Center experience but are willing to try
c)    Folks who claim to have experience but who either won't give ma
              references or who's reference don't say nice things about them

I got a line on two places in California (we're in Michigan) as was desperate
enough to call them but both seem to be out of business.

Thanks in advance for any advice and/or recommendations.

        -- Andrew


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Joel Jaeggli                                   joelja () darkwing uoregon edu
Academic User Services                       consult () gladstone uoregon edu
     PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E
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It is clear that the arm of criticism cannot replace the criticism of
arms.  Karl Marx -- Introduction to the critique of Hegel's Philosophy of
the right, 1843.



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