Re: do I have to worry about these disk errors?

[Paulo Cavalcanti <promac@xxxxxxxxx>]

On Sun, Jun 7, 2009 at 12:16 PM, John Mellor <john.mellor@xxxxxxxxx> wrote:

On Sun, 2009-06-07 at 09:31 -0500, Mike Chambers wrote:

> On Sun, 2009-06-07 at 16:41 +0300, Jussi Lehtola wrote:
>
> > You can verify the diagnosis with
> >
> > # smartctl -A /dev/sda
> >
> > If you have a nonzero number in one or more of the following fields
> >   Reallocated_Sector_Ct
> >   Current_Pending_Sector
> >   Offline_Uncorrectable
> > then your hard drive is failing. Especially if you have something in
> > the latter two you should panic.
>
> I was getting a report myself via the gui applet that my sd was failing
> (this damn thing isn't even a year old), so I ran the command above..
>
> === START OF READ SMART DATA SECTION ===
> SMART Attributes Data Structure revision number: 10
> Vendor Specific SMART Attributes with Thresholds:
> ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE
> UPDATED  WHEN_FAILED RAW_VALUE
>   1 Raw_Read_Error_Rate     0x000f   105   094   006    Pre-fail  Always
> -       9758257
>   3 Spin_Up_Time            0x0003   096   094   000    Pre-fail  Always
> -       0
>   4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always
> -       16
>   5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail  Always
> -       1
>   7 Seek_Error_Rate         0x000f   075   060   030    Pre-fail  Always
> -       39183414
>   9 Power_On_Hours          0x0032   099   099   000    Old_age   Always
> -       1247
>  10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always
> -       0
>  12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always
> -       15
> 187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always
> -       0
> 189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always
> -       0
> 190 Airflow_Temperature_Cel 0x0022   061   052   045    Old_age   Always
> -       39 (Lifetime Min/Max 37/41)
> 194 Temperature_Celsius     0x0022   039   048   000    Old_age   Always
> -       39 (0 20 0 0)
> 195 Hardware_ECC_Recovered  0x001a   065   061   000    Old_age   Always
> -       52230011
> 197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always
> -       0
> 198 Offline_Uncorrectable   0x0010   100   100   000    Old_age
> Offline      -       0
> 199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always
> -       0
> 200 Multi_Zone_Error_Rate   0x0000   100   253   000    Old_age
> Offline      -       0
> 202 TA_Increase_Count       0x0032   100   253   000    Old_age   Always
> -       0
>
> Hopefully didn't get messed up and not wrapped.  Basically I see a 1
> where the Reallocated_Sector_Ct is.  Is this thing going bad?
>
> --
> Mike Chambers
> Madisonville, KY
>
> Fedora Project - Bugzapper, Tester, User, etc..
> miketc302@xxxxxxxxxxxxxxxxx
>

That does not look good.  But I don't think that the problem originates
with the drive.  In fact, it looks like you have a problem with your
case design - the disk is claiming to be running a lot hotter than it
was designed for.  The resulting out-of-spec expansion of all of the
disk components is probably the real cause of all of the other errors.

39 degrees celsius is not bad at all for an HD.
Anything below 45 degrees celsius is good (the maximum advertised temperature is in general 60 degrees celsius).

-- 
Paulo Roma Cavalcanti
LCG - UFRJ
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