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Re: hddtemp value



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Ralph Katz wrote:
> On 06/22/2007 05:03 PM, michael@estone.ca wrote:
>> Quoting Pol Hallen <debianen@fuckaround.org>:
>>> Which value hddtemp show? (about my ata disks, between 45-55 C)
>>>
>>> Is it correct? Or I should worry?
>>>
>> 45-55 C seems a little hot. They will probalby work for you but your
>> drives will probably die sooner than later. Either they are too close
>> together and/or you need more direct fans on your drives.
>> I think normal operating temps for drives is between 35 and 40 C.
>> perhaps check with your drive manufacturer and check the recommended
>> operating temps.
> 
> If Pol should worry, then my drive must have more than 9 lives. ;)
> 
> Perhaps this old drive doesn't really have a sensor, but this is typical
>  of entries in /var/log/daemon.log:
> 
> Jun 23 08:21:47 localhost smartd[2616]: Device: /dev/hda, SMART Usage
> Attribute: 231 Temperature_Celsius changed from 239 to 166
> Jun 23 08:51:47 localhost smartd[2616]: Device: /dev/hda, SMART Usage
> Attribute: 231 Temperature_Celsius changed from 166 to 157
> Jun 23 09:21:48 localhost smartd[2616]: Device: /dev/hda, SMART Usage
> Attribute: 231 Temperature_Celsius changed from 157 to 144
> 
> Maybe it gives new meaning to the phrase, "really smokin'!"  This
> desktop PIII has been reliably running debian for 3 1/2 years.

My hard drives never drop below 40 C.

I have a four drives in this system:
One is underneath a CD/DVD drive near the top of the case.  That one
would get hotter, I would assume, because air doesn't move much up
there, but it is at 42 C now, which (from my own experience) isn't that
hot.  This drive isn't used much, that may make a difference.

One is under the floppy drive (hmm, does it even work anymore?); I would
expect it to be a bit cooler; it is at 40 C.

Two are at the bottom of the case right in front of (like a cm from) the
fan.  They are very close, with maybe 2 mm between, but they should be
quite cool I would think, with air blowing directly on them.  One is 40
C and the other is 78 C!  Exact same drives.  Neither feels much warmer
than the other, as far as I can tell, and smartctl shows no errors.
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