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RE: [datacenter] AC settings


If there is an online link to the bellcore standard could you please
post it?  Thank you.

-----Original Message-----
From: Martin Hannigan [mailto:[email protected]] 
Sent: Friday, June 28, 2002 8:26 AM
To: [email protected]
Cc: [email protected]
Subject: Re: [datacenter] AC settings

Datacenter temperature is open for speculation :) but I believe that the
Bellcore standard is < 71F. I don't have the docs in front of me.

Now, I'm not saying that's what you should use, but I typically take the
Bellcore recommendation, and adapt it to my needs, wants, and $$$.

Remember, every degree is going to cost you power. Also, did you get
humidifiers with your units? That's where people will complain i.e. if
it's too wet, or too dry.



Martin Hannigan			[email protected]
Boston, MA			http://www.fugawi.net

On Fri, 28 Jun 2002 [email protected] wrote:

> We have a new datacenter with dual split-system air conditioners 
> installed. The first is set for 72f and the second for 74f as a 
> backup. The ductwork blows air down over open racks (no raised floor 
> or cabinets here). What do other people choose for temperatures in 
> datacenters? I know from past experience that certain pieces of 
> equipment (hard drives for
> example) become ever so slightly less reliable if they are run in 80+
> indoor temperature all the time.
> We caged off particular areas of the building for physical security 
> instead of using cabinets. We got a great deal on 19" racks from a 
> well known failed dotcommer datacenter here in New England.
> Also, some time ago, I asked questions about experiences with 
> Cummins/Onan diesel generators and received good responses. I went 
> ahead and had one installed. We've had a 35KW 3-phase Cummins/Onan 
> diesel now for a while and are quite happy with it. We went with all 
> the options like the coolant heater, auto transfer switch with 
> excerciser and battery charger, external fuel tank, etc...
> Jason Philbrook
> Midcoast Internet Solutions
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