Re: understanding smart logs

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JD wrote:
>   On 08/15/2010 06:44 PM, Suvayu Ali wrote:
>   
>> On Sunday 15 August 2010 10:17 AM, James McKenzie wrote:
>>     
>>> Got a good backup of this drive?  Looks like it needs to be retested, in
>>> a different machine and if it fails, replaced.
>>>
>>> I had a drive that exhibited the same behavior and eventually, it failed.
>>>
>>>       
>> I downloaded the bootable iso of the disk diagnostic suite from Western
>> Digital and ran. It claimed to detect and fix the errors. After the scan
>> the smart logs read like this,
>>
>>     
>>> Vendor Specific SMART Attributes with Thresholds:
>>> ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
>>>    1 Raw_Read_Error_Rate     0x002f   199   199   051    Pre-fail  Always       -       1545
>>>    3 Spin_Up_Time            0x0027   253   253   021    Pre-fail  Always       -       1066
>>>    4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       42
>>>    5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
>>>    7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
>>>    9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       1426
>>>   10 Spin_Retry_Count        0x0032   100   253   000    Old_age   Always       -       0
>>>   11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0
>>>   12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       38
>>> 192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       21
>>> 193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       20
>>> 194 Temperature_Celsius     0x0022   109   107   000    Old_age   Always       -       41
>>> 196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
>>> 197 Current_Pending_Sector  0x0032   200   199   000    Old_age   Always       -       78
>>> 198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       0
>>> 199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
>>> 200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       0
>>>
>>> SMART Error Log Version: 1
>>> No Errors Logged
>>>
>>> SMART Self-test log structure revision number 1
>>> Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
>>> # 1  Conveyance offline  Completed: read failure       90%      1422         1106820646
>>> # 2  Extended offline    Completed: read failure       90%      1393         1106820646
>>>
>>>       
>> Is it okay to continue with this drive? I bought them a few months back,
>> I am not in a position to change them unless I can RMA the unit.
>>
>>     
>>> James McKenzie
>>>       
>> All suggestions welcome.
>>     
>
> Is it possible to purge the SMART logs and reset
> the counters, and the rerun the SMART tests?
>
>   
That should be possible.  Any errors should be a good reason to send the 
drives back.

James McKenzie

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