Re: hddtemp value
On 06/25/2007 08:26 AM, Hugo Vanwoerkom wrote:
> Ralph Katz wrote:
>> On 06/22/2007 05:03 PM, firstname.lastname@example.org wrote:
>>> Quoting Pol Hallen <email@example.com>:
>>>> Hi folks :-)
>>>> 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: Device: /dev/hda, SMART Usage
>> Attribute: 231 Temperature_Celsius changed from 239 to 166
>> Jun 23 08:51:47 localhost smartd: Device: /dev/hda, SMART Usage
>> Attribute: 231 Temperature_Celsius changed from 166 to 157
>> Jun 23 09:21:48 localhost smartd: 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.
> Those are not the "raw" values, I think (TM)
> What does
> /usr/sbin/smartctl -a -d ata /dev/hda
Bingo! Hugo, you are could be correct:
$ sudo /usr/sbin/smartctl -a -d ata /dev/hda
SMART Attributes Data Structure revision number: 5
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
231 Temperature_Celsius 0x0002 141 100 000 Old_age Always
Of course, I still don't know how to understand the SMART data after
many efforts to research this. How could "worst" 100 be higher than the
141 Value? And what about the values up to 239 reported above? But
RAW_VALUE above is 39, so if that's celsius, that part makes sense.