[mythtv-users] OT: hard drive failure?

Steven Adeff adeffs.mythtv at gmail.com
Sun Jan 28 17:14:21 UTC 2007


On 1/18/07, Rick <ve1gn at nb.sympatico.ca> wrote:
> Sdkovacs wrote:
> > I just bought the  Seagate Barracuda 7200.10 from newegg and installed
> > it as my /videos partition. I happened to do a smartctl command on it
> > for no particular reason and some numbers that came back jumped out at
> > me. Could this drive be failing already? Hardware_ECC_Recovered and
> > Raw_Read_Error_Rate and Seek_Error_Rate are continually going up as
> > one can see below. Is this something that should concern me?
> >
> > Also, what is an acceptable operating temperature for a hard drive?
> >
> > Thanks,
> > Steve
> >
> > smartctl -A /dev/hdb
> > smartctl version 5.36 [i386-redhat-linux-gnu] Copyright (C) 2002-6 Bruce Allen
> > Home page is http://smartmontools.sourceforge.net/
> >
> > === 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   108   100   006    Pre-fail
> > Always       -       15144819
> >   3 Spin_Up_Time            0x0003   099   099   000    Pre-fail
> > Always       -       0
> >   4 Start_Stop_Count        0x0032   100   100   020    Old_age
> > Always       -       2
> >   5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail
> > Always       -       0
> >   7 Seek_Error_Rate         0x000f   062   060   030    Pre-fail
> > Always       -       1797798
> >   9 Power_On_Hours          0x0032   100   100   000    Old_age
> > Always       -       40
> >  10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail
> > Always       -       0
> >  12 Power_Cycle_Count       0x0032   100   100   020    Old_age
> > Always       -       3
> > 187 Unknown_Attribute       0x0032   100   100   000    Old_age
> > Always       -       0
> > 189 Unknown_Attribute       0x003a   100   100   000    Old_age
> > Always       -       0
> > 190 Unknown_Attribute       0x0022   055   055   045    Old_age
> > Always       -       756678701
> > 194 Temperature_Celsius     0x0022   045   045   000    Old_age
> > Always       -       45 (Lifetime Min/Max 0/26)
> > 195 Hardware_ECC_Recovered  0x001a   070   058   000    Old_age
> > Always       -       42604064
> > 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
> >
> >
> >
>
> I've had 4 of those drives in an NAS running since late last summer without problems.  They all get similar readings to yours.  It was explained on the Infrant forums that smart was just not decoding the values correctly and that there is no problem.
>
> cheers,
> Rick

that wouldn't surprise me, SMART needs to "convert" the values it
receives from the drive, for the most part these conversions are
"trade secrets", so the manufacturers don't publish them. The SMART
team has been able to figure out a few of them, but manufacturers
change the values constantly as well. What should not be affected
though is the threshold values, which from what I understand are
absolute, so until your values surpasses this threshold I wouldn't
worry.

-- 
Steve
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