nanog mailing list archives
Re: FreeAxez raised flooring?
From: david raistrick <drais () icantclick org>
Date: Fri, 5 Mar 2010 11:26:23 -0500 (EST)
On Fri, 5 Mar 2010, Dorn Hetzel wrote:
What is the purpose of raised flooring if it *doesn't *create a plenum?
...cabling? (though I think working under a floor to route cables vs overhead ladder is a pain..but mixing cabling AND air underfloor is much worse)
On Fri, Mar 5, 2010 at 10:39 AM, Jason Gurtz <jasongurtz () npumail com> wrote:
How would cooling be done in this scenario? Open air (with intake/exhaust mixing) seems like a step backwards in terms of efficiency.
The usual methods of overhead (or possibly underfloor if you have enough height) distribution: Ductwork. :)
Feed cold air into your cold aisle, and depending on your density and ceiling height use a general hot air return that pulls from the top of the ceiling (likely the same way you're used to seeing it done for most raised floor installs) OR drop additional hot air returns right over your hot aisles.
Further hot/cold seperation is entirely possible, too, to support higher densities...
Personally I'm not a fan of using raised floor for a cold air plenum for reasons I'm not inclined to go into right now. :)
-- david raistrick http://www.netmeister.org/news/learn2quote.html drais () icantclick org http://www.expita.com/nomime.html
Current thread:
- FreeAxez raised flooring? Jason Gurtz (Mar 05)
- Re: FreeAxez raised flooring? Dorn Hetzel (Mar 05)
- Re: FreeAxez raised flooring? david raistrick (Mar 05)
- Re: FreeAxez raised flooring? acv (Mar 05)
- Re: FreeAxez raised flooring? Ryan Spott (Mar 05)
- Re: FreeAxez raised flooring? Owen DeLong (Mar 05)
- Re: FreeAxez raised flooring? William Herrin (Mar 05)
- Re: FreeAxez raised flooring? William Herrin (Mar 05)
- Re: FreeAxez raised flooring? Wayne E. Bouchard (Mar 05)
- Re: FreeAxez raised flooring? Owen DeLong (Mar 05)
- Re: FreeAxez raised flooring? William Herrin (Mar 05)
- Re: FreeAxez raised flooring? Wayne E. Bouchard (Mar 05)
- Re: FreeAxez raised flooring? Tim Durack (Mar 05)
- Re: FreeAxez raised flooring? Dorn Hetzel (Mar 05)