SMART

[Thomas Backman]

On Nov 12, 2009, at 1:25 PM, Ivan Voras wrote:
> Actually, it would be good if you taught more than him :)
> 
> I've always wondered how important are each of the dozen or so statistics and what indicates what...
> 
> Here is for example my desktop drive:
> 
> 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   087   083   006    Pre-fail Always       -       45398197
>  3 Spin_Up_Time            0x0003   096   093   000    Pre-fail Always       -       0
>  4 Start_Stop_Count        0x0032   100   100   020    Old_age Always       -       64
>  5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail Always       -       0
>  7 Seek_Error_Rate         0x000f   084   060   030    Pre-fail Always       -       247407473
>  9 Power_On_Hours          0x0032   089   089   000    Old_age Always       -       10155
> 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail Always       -       0
> 12 Power_Cycle_Count       0x0032   100   100   020    Old_age Always       -       64
> 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   058   055   045    Old_age   Always       -       42 (Lifetime Min/Max 37/44)
> 194 Temperature_Celsius     0x0022   042   045   000    Old_age   Always       -       42 (0 20 0 0)
> 195 Hardware_ECC_Recovered  0x001a   062   059   000    Old_age   Always       -       45398197
> 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 see many values exceeding threshold but since I see it so often on other drives I don't know what the threshold is for.
None of the your values are exceeding the threshold - it works backwards. If the value is LOWER than the threshold, you might be in trouble.
Also, judging by the raw read error rate, seek error rate and hardward ECC recovered, allow me to guess that this is a Seagate drive. :-)
(Seagate drives, perhaps among others, use these raw values way differently than others. My Hitachi 7K1000.B has 0 on those.)

Regards,
Thomas