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cooling

Hi all,

We recently purchased a new dell power edge 2850 server, and installed it into our rack. The rack here is situated under the stairs in a small alcove, with no windows or air conditioning (not my idea). Now when this beast is powered up it throws out alot of hot air. The extractor fans in the rack are struggling to cope which is a seperate issue. What i want to know is would a portable air cooler that work via evaporation be suitable to cool this alcove (evaporation uses water, evaporated into the air to cool the room). Im worried that this may have a negetaiuve effect on the i.t equipment? Can anyone suggest any other ways i could keep the room/ rack cool

cheers

Paul
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pab006
Asked:
pab006
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2 Solutions
 
Rob WilliamsCommented:
>>"(evaporation uses water, evaporated into the air to cool the room)"
Definitely not recommended. Big server rooms are temperature and humidity controlled. Best solution is big exhaust fan with matching air intake vent. Hopefully that is an option. If not perhaps a 2 stage air conditioner. With a 2 stage the cooling system can be in the room and the larger compressor section outside the building and the two are only connected with a pair of >1" pipes.
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cvsadminCommented:
you can get a floor mount airconditioner that will also dehumidify.
www.danby.com also avaliable at sears.

I suspect you only need about 10k BTU depending on space.
http://www.danby.com/en/productDetails.asp?model_no=DPAC8020&dept=0004
The one above will do 340 Square feet.

One of my clients has 2 of these in a 1200 sq/ft room
http://www.danby.com/en/productDetails.asp?model_no=SPAC12046&dept=0004

No issues and they run 3 dell servers.
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Rob WilliamsCommented:
The concern I always have with the free standing air conditioners is the condensed water sits in an open tray, though they are likely better than having the equipment fry.

Is there even an option to cut a hole in the wall and install a basic fan just to circulate the air from the surrounding rooms and or hallways?
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hfernCommented:
You would need somehow be able to dispense of the heat. If you add an air cooler without the possibility that it can release it's heat somewhere, then all you achieve is making things worse. The cooler also produces heat...
I see a few options:
1. get an aircon outlet in your closet
2. use the 2 stage cooling solution as described by RobWill
3. leave the door open
4. move the server to a better location.

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cvsadminCommented:
Buy an aircon unit with dehumidification and cut a hole to vent hot air.
You could cut a hole in the top and bottom of the door with vents and circulate air via fan. (may be a security issue here if you dont put on proper bars)
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pab006Author Commented:
Hi,

thanks for the advice. Unfortunatley moving the server isnt an option as there is no where else for it to go. The room itself is basically a stair well, with only two entrances one at the top of the stairs and one at the bottom (the rack sit underneath the stairwell.

Im looking into replacing the extractor fans in the rack or adding two new ones (it currently only has two), and possibly placing a small fan in the rack as well to circulate the air/ one otuside the rack to keep the air moving around the stairwell.

Unfortunatley i didnt place the rack here (ive only just joined the company as such and have inherited their setup), and the company is reluctant to shell out on an air con unit.

Thanks again

Paul

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waqaswasibCommented:
shift it to other place simply
bye
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Rob WilliamsCommented:
At a minimum you could cut a vent in the back of two stair risers, one high, and one low. A fan in the upper one would be even better.
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cvsadminCommented:
I agree with Robwill, you need to vent that air, if you don’t shell out for aircon, use vents and fans, top and bottom as suggested, its a cheep way to do it, but kind of effective.

You should also pony up for 4 thermometers, top and bottom on opposite walls. This will give you an idea if your air circulation is working.

Good luck
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pab006Author Commented:
Hi,

well ive managed to convinve them to get air con in the stairwell, but thats not going to happen for a while, so im going to have to leave the back off the rack and put a few fans in to move the air around.

thanks for all your advice

Paul
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Rob WilliamsCommented:
Good luck with it Paul. Thanks,
--Rob
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