Re: Power_On_Hours value is much less then selftest LifeTime(hours)
Vlad <[email protected]> Wed, 18 May 2016 07:53:31 +0200
| Newsgroups | gmane.linux.utilities.smartmontools |
|---|---|
| Message-ID | <[email protected]> |
Thanks for the answer! The drive supports drive stats and the statistic
was probably erased ad well. After 2 days of usage:
Device Statistics (GP Log 0x04)
Page Offset Size Value Flags Description
0x01 ===== = = === == General Statistics (rev 1) ==
0x01 0x008 4 2 --- Lifetime Power-On Resets
0x01 0x010 4 87 --- Power-on Hours
0x01 0x018 6 2019113992 --- Logical Sectors Written
0x01 0x020 6 3453323 --- Number of Write Commands
0x01 0x028 6 5916230 --- Logical Sectors Read
0x01 0x030 6 117457 --- Number of Read Commands
0x03 ===== = = === == Rotating Media Statistics (rev 1) ==
0x03 0x008 4 87 --- Spindle Motor Power-on Hours
0x03 0x010 4 87 --- Head Flying Hours
0x03 0x018 4 2 --- Head Load Events
0x03 0x020 4 0 --- Number of Reallocated Logical Sectors
0x03 0x028 4 1 --- Read Recovery Attempts
0x03 0x030 4 0 --- Number of Mechanical Start Failures
0x04 ===== = = === == General Errors Statistics (rev 1) ==
0x04 0x008 4 0 --- Number of Reported Uncorrectable Errors
0x04 0x010 4 2 --- Resets Between Cmd Acceptance and
Completion
0x05 ===== = = === == Temperature Statistics (rev 1) ==
0x05 0x008 1 36 --- Current Temperature
0x05 0x010 1 36 N-- Average Short Term Temperature
0x05 0x018 1 - N-- Average Long Term Temperature
0x05 0x020 1 40 --- Highest Temperature
0x05 0x028 1 24 --- Lowest Temperature
0x05 0x030 1 36 N-- Highest Average Short Term Temperature
0x05 0x038 1 25 N-- Lowest Average Short Term Temperature
0x05 0x040 1 - N-- Highest Average Long Term Temperature
0x05 0x048 1 - N-- Lowest Average Long Term Temperature
0x05 0x050 4 0 --- Time in Over-Temperature
0x05 0x058 1 60 --- Specified Maximum Operating Temperature
0x05 0x060 4 0 --- Time in Under-Temperature
0x05 0x068 1 0 --- Specified Minimum Operating Temperature
0x06 ===== = = === == Transport Statistics (rev 1) ==
0x06 0x008 4 28 --- Number of Hardware Resets
0x06 0x010 4 12 --- Number of ASR Events
0x06 0x018 4 0 --- Number of Interface CRC Errors
|||_ C monitored condition met
||__ D supports DSN
|___ N normalized value
Regards,
Vlad.
On 18/05/16 07:39, Christian Franke wrote:
> Is this possibly a refurbished drive ?
> If yes, the factory may have reset the SMART attribute table but forgot
> to reset the self-test log.
>
> Please check whether the drive supports Device Statistics (smartctl -l
> devstat, included smartctl -x).
>
>
> robert at spotswood-computer.net wrote:
>> I have vague memories about the attrib raw counters can cycle, e.g. once
>> they hit some value, say 9999, the next hour they increment to 0000. Note
>> some drives record minutes, not hours in the raw counter.
>>
>> I would trust the self test log hours more. And this is an old drive by
>> those numbers.
>>
>>> Hello,
>>>
>>> I've recently bought the "new" HDD Hitachi Ultrastar A7K2000 and found
>>> the following in the output of the smartctl (check particularly the
>>> Power_On_Hours and LifeTime(hours)):
>>>
>>> ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
>>> UPDATED WHEN_FAILED RAW_VALUE
>>> ...
>>> 4 Start_Stop_Count 0x0012 100 100 000 Old_age
>>> Always - 2
>>> 5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail
>>> Always - 0
>>> 7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail
>>> Always - 0
>>> 8 Seek_Time_Performance 0x0005 100 100 020 Pre-fail
>>> Offline - 0
>>> 9 Power_On_Hours 0x0012 100 100 000 Old_age
>>> Always - 45
>>> ...
>>> SMART Self-test log structure revision number 1
>>> Num Test_Description Status Remaining
>>> LifeTime(hours) LBA_of_first_error
>>> # 1 Short offline Completed without error 00%
>>> 36872 -
>>> # 2 Short offline Completed without error 00%
>>> 36784 -
>>> ...
>>>
>>> I'd appreciate if somebody could give an explanation of these numbers.
>>>
>>>
>>> Regards,
>>> Vlad.
>>> ------------------------------------------------------------------------------
>>> Mobile security can be enabling, not merely restricting. Employees who
>>> bring their own devices (BYOD) to work are irked by the imposition of MDM
>>> restrictions. Mobile Device Manager Plus allows you to control only the
>>> apps on BYO-devices by containerizing them, leaving personal data
>>> untouched!
>>> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j_______________________________________________
>>> Smartmontools-support mailing list
>>> [email protected]
>>> https://lists.sourceforge.net/lists/listinfo/smartmontools-support
>>>
>> ------------------------------------------------------------------------------
>> Mobile security can be enabling, not merely restricting. Employees who
>> bring their own devices (BYOD) to work are irked by the imposition of MDM
>> restrictions. Mobile Device Manager Plus allows you to control only the
>> apps on BYO-devices by containerizing them, leaving personal data untouched!
>> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j
>> _______________________________________________
>> Smartmontools-support mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/smartmontools-support
>>
>
> ------------------------------------------------------------------------------
> Mobile security can be enabling, not merely restricting. Employees who
> bring their own devices (BYOD) to work are irked by the imposition of MDM
> restrictions. Mobile Device Manager Plus allows you to control only the
> apps on BYO-devices by containerizing them, leaving personal data untouched!
> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j
> _______________________________________________
> Smartmontools-support mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/smartmontools-support
------------------------------------------------------------------------------
Mobile security can be enabling, not merely restricting. Employees who
bring their own devices (BYOD) to work are irked by the imposition of MDM
restrictions. Mobile Device Manager Plus allows you to control only the
apps on BYO-devices by containerizing them, leaving personal data untouched!
https://ad.doubleclick.net/ddm/clk/304595813;131938128;j