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I agree that the room should be much cooler, I
hate coming in on the weekends here, but the management has an "if it
ain't broke don't fix it" attitude and point out that we have had no significant
problems over 5 years so why change things now. We have had a few drives
(4 out of 20) fail over the years, some internal, some in a
Powervault, but nothing that seems out of the ordinary for 5 year old 10k
rpm drives that are always on. Since they are all raided, it has not
caused us any trouble yet and we simply replace the drive under our sevice
contract. I always look at it as an opportunity to get more drive space as
they don't make drives that small anymore.
Upgrading our drives one at a time.
:o)
4 failures out of 20 drives over 5 years.
Does that seem too high a failure rate or about average?
If it could be proven that the high temps are
causing drive failures the management might be a bit more interested in
upgrading the AC system in the computer room.
Doug
----- Original Message -----
Sent: Friday, August 12, 2005 11:30
AM
Subject: Re: [Declude.Virus] OT - Server
Room Temperature
Doug,
Hard drives are probably the most sensitive
components that you have in your servers, and I am not aware of any hard
drives that should be run above 50C/122F. My server runs about 35F
hotter for the system temp than the environment and about 40F hotter for the
CPU's than the environment. Note that these readings are under normal
load, but when the server redlines, the CPU's increase by about 15F and the
system by about 5F. Considering that the hard drives create heat
themselves and their much lower tolerance for heat in comparison to solid
state components, it would seem that going over 30C/85F for the ambient
temperature would be very dangerous as far as the hard drives go in an active
server. Hard drives will likely go over their operating temperature long
before the system or the processors unless you have a broken fan or bad
connection with a heat sync. My system is spec'd at 15C/27F over the
hard drive's tolerance, and my CPU's at 27C/50F over.
IMO, 66F is the
proper server room temperature, and it gives some leeway for adding more
equipment and other issues that can crop up such as A/C failures. 72F
would be the high end normal temp that I would want to see. If my colo
was over 75F, I would definitely complain. The guy next to me with 25
TB's of 15,000 RPM SCSI drives would probably complain louder
:)
Matt
Doug Traylor wrote:
We just looked at the operating spec of our
servers from the Manufacturer's (Dell) website. The max is listed as
95* F and we run around 80* F during the day on weekdays and up to 92* F on
the weekends when they turn off the AC in the plant. We have our own
AC which runs 24/7 in the computer room/closet. So far we have not had
any noticeable system problems in the five years we have been operating this
way.
When we had a large IBM mainframe with all the
dressing, we kept it in a large computer room that was kept at a chilly 66*
F. I was a computer operator then and worked in there for 8-12 hours a
day. I would wear two shirts and longs sleeves to work, even when
it was 110* F outside - Texas.
Doug
-----
Original Message -----
Sent:
Thursday, August 11, 2005 8:58 AM
Subject:
[Declude.Virus] OT - Server Room Temperature
Can someone point me to a source of
information regarding what temperature a server room should be at
?
Thank you.
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