[Beowulf] HVAC and room cooling...
alvin at Mail.Linux-Consulting.com
Sat Jan 31 21:51:01 EST 2004
On Sat, 31 Jan 2004, John Hearns wrote:
> What happens when the liquid nitrogen vapourises? It turns to nitrogen
> gas. And if you are unlucky anyone in the room chokes...
> I was reminded of this in the lift of a chemistry department where
> we have an opteron cluster - a large sign reminding that LNO2 and
> dangerous chemicals are not allowed in passenger lifts.
> BTW, when arranging air flows try to get cold air ducted into the front of
> the rack - node tend to draw air in the front and exhaust to the rear.
it'd be better, if one could, to make it bottom to top air flow
and all inside a sealed ( reasonably closed ) rack
if co-location is an option... the best choice would be alsaka or canada
and leave the 3rd/4th story window open to the outside ??
( wonder how it'd run during the short summers )
- and yes.. lots of people forget about regulatory issues when
building clusters or too many pc's in the office
- not enough building power being the first major "oops"
- fire hazard being the 2nd violations
( they(fire dept) don't allow daisy chained power strips )
- not enough hvac or costs of cooling ..
( sometimes big fans, in the right direction, is enough
to keep the pc cooler )
- too much regulations also kills the project :-0
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