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Author Topic: server room temperatures  (Read 1892 times)

techidave

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server room temperatures
« on: June 09, 2008, 09:40:19 PM »
I realize this is not a networking forum but thought I would pick the brains of some of the smartest people in the world!   ;D

The question(s) are:
1.  How hot should a server room be before equipment gets damaged?
2.  If the maximum temp is say... 82 F then if the temp gets to say 85F, then what will happen?
3.  How to justify to the administration for the need to more A/C, somekind of a notification system of too high temps, and anything else I may need to consider.

I have the temp set on the A/C unit to 72F but when the power goes off it can reach 90F+ or more in a short while.  Since I live 7 miles from this school and nobody else thinks of turning the A/C back on after a failure but me.   :(

A little history:
 We are a small K-12 school district that like most rural districts are facing declining enrollment, there fore less dollars are available.  My server room in the high school currently has 3 servers with the newest one being 1 year old, another is 3 years old, and the third one is about 7 years old.  The newest one does put out a lot of heat.  The room is approx 6ft by 12 feet with about a 10,000 BTU window A/C unit and a radiator for heat.

We do have a lot of power failures lasting on the average of 2 hours or so.  Buying a UPS big enough to handle this is out of the question.

Does anyone have any ideas that might help.  I have found these 2 good articles that help explain things but just wondered if I am the only one in this boat... surely not!

http://www.openxtra....room-temperature.php  and  http://www.openxtra....oring-essentials.php

40hz

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Re: server room temperatures
« Reply #1 on: June 10, 2008, 08:51:22 AM »
A lot depends on your hardware. I've had server room temperatures hit 100+ degrees and not had any direct hardware failures. The machines in question were IBM Blade and Compaq ProLiant servers which have pretty robust system management features and will autoshutdown if heat becomes an issue however. I wouldn't be too happy if this happened to some of the "white box" and budget Dells I also manage.

I'm going to skip the tech part for now because what you have is really more of a management/budget problem.

Here's a question: how badly inconvenienced is the school when it doesn't have access to the server farm? If the answer is "not very" you're basically stuck. Cost to benefit is not there. And this is especially a problem if you frequently experience outages. By now,the staff has probably come up with work-arounds for getting stuff done when system is down.

Next question: would anybody (other than you  ;) ) lose their job or get disciplined by the state or the Feds if you lost everything that's on those servers? That would include elected officials responsible for budgeting and operations in your school district. If the answer is yes, you'll need to work up a risk assessment and spell out the cost of doing nothing. Hopefully somebody will be smart enough (or scared enough) to see wisdom.

One thing I would definitely do is document your concerns in some formal way. Write it up and give it to whoever you report to. Rule 1: Don't lose your job/client!

I had a brokerage client that had a failing MSExchange server. I warned them at least once a week that it needed to be wiped and reinstalled. They kept putting it off. Two years later it finally failed. They lost two years worth of contract and legal correspondence because Exchange backed up a corrupted database, which it then refused to restore because --- it was corrupted! Gotta love it.

The only thing that kept me from being sued by them (and possibly prosecuted by the SEC) was the letter I sent to their senior management where I spelled out the risks and consequences of doing nothing. In the end, we retained them as a client, and one VP lost his job. Scary stuff and best avoided.

From a tech perspective, does your server have management features? If so, you could have it monitor ambient temps and send e-mails via SMTP to notify you and someone at the school when the system is shutting down. You could also have your UPS notify the server of a "power restored" event and then also send e-mail so that somebody could turn the AC back on. Those capabilities are doable with what you should already have.

Hope this was helpful.







techidave

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Re: server room temperatures
« Reply #2 on: June 10, 2008, 09:55:35 PM »
Thanks 40hz for the reply.  What you said confirmed what I was thinking.

We are getting more and more dependant on the server farm as time goes on since we host our own mail server (Exchange 2003) plus a student gradebook server as well as testing servers.  When our main server goes down, then we lose a lot of functionality plus things just crawl along.

I doubt that anyone would lose their job or anything like that, things do happen. 

oh well, job security even if it does require more time and distance traveled.

Dave