bad sector in gmirror HDD

[Dan Langille]

On Aug 20, 2011, at 2:04 PM, Diane Bruce wrote:

> On Sat, Aug 20, 2011 at 01:34:41PM -0400, Dan Langille wrote:
>> On Aug 19, 2011, at 11:24 PM, Jeremy Chadwick wrote:
>> 
>>> On Fri, Aug 19, 2011 at 09:39:17PM -0400, Dan Langille wrote:
> ...
>>>> Information such as this?  http://beta.freebsddiary.org/smart-fixing-bad-sector.php
> ...
>>> 3) A very high temperature of 51C (SMART attribute 194).  If this drive
>>> is in an enclosure or in a system with no fans this would be
> 
> ...
> 
> eh? What's the temperature of the second drive?

Roughly the same:


[root at bast:/home/dan/tmp] # smartctl -a /dev/ad2 | grep -i temp
194 Temperature_Celsius     0x0022   080   076   042    Old_age   Always       -       51

[root at bast:/home/dan/tmp] # smartctl -a /dev/ad0 | grep -i temp
194 Temperature_Celsius     0x0022   081   074   042    Old_age   Always       -       49
[root at bast:/home/dan/tmp] # 


FYI, when I first set up smartd, I questioned those values.  The HDD in question, at the time,
did not feel hot to the touch.

> 
> ...
> 
>> This is an older system.  I suspect insufficient ventilation.  I'll look at getting
>> a new case fan, if not some HDD fans.
> 
> ...
> 
>>> I still suggest you replace the drive, although given its age I doubt
> 
> Older drive and errors starting to happen, replace ASAP.
> 
>>> you'll be able to find a suitable replacement.  I tend to keep disks
>>> like this around for testing/experimental purposes and not for actual
>>> use.
>> 
>> I have several unused 80GB HDD I can place into this system.  I think that's
>> what I'll wind up doing.  But I'd like to follow this process through and get it documented
>> for future reference.
> 
> If the data is valuable, the sooner the better. 
> It's actually somewhat saner if the two drives are not from the same lot.

Noted.

-- 
Dan Langille - http://langille.org