S.M.A.R.T. Monitoring Tools

On Mon, Sep 21, 2009 at 10:14:14PM +0200, Christian Franke wrote:
> Joerg Sommrey wrote:
>> The output of "smartctl -l selective /dev/sda" shows a wrong remaining
>> percentage for a running selective self test, e.g.
>>
>>  SPAN  MIN_LBA    MAX_LBA  CURRENT_TEST_STATUS
>>     1        0  100000000  Self_test_in_progress [10% left] (7977798-8043333)
>>
>> The value runs down quickly to 10% when there are actually more than 90%
>> left and stays at this value for the remainder of the test.
>>
>>   
>
> Smartctl does not calculate the '% left' value. It simply uses bits 0:3  
> (1=10%,..., 9=90%) of the 'Self-test execution status byte' which is  
> part of the SMART data read from the drive.
>
> So this is actually a drive firmware issue :-)

As I said before: Not a big issue.
:-)

Thanks for clarifying.

-jo

-- 
-rw-r--r-- 1 jo users 62 2009-09-20 11:44 /home/jo/.signature

on 21/09/2009 15:36 Andriy Gapon said the following:
> I know that wikipedia is not a too reliable source of information, but...
> 
> Here's what smartctl reports:
> smartctl version 5.38 [amd64-portbld-freebsd9.0] Copyright (C) 2002-8 Bruce Allen
> Home page is http://smartmontools.sourceforge.net/
> 
> === START OF INFORMATION SECTION ===
> Device Model:     ST3500410AS
> Serial Number:    5VM0NB43
> Firmware Version: CC34
> User Capacity:    500,107,862,016 bytes
> Device is:        Not in smartctl database [for details use: -P showall]
> ATA Version is:   8
> ATA Standard is:  ATA-8-ACS revision 4
> Local Time is:    Mon Sep 21 15:29:24 2009 EEST
> SMART support is: Available - device has SMART capability.
> SMART support is: Enabled
> ...
> 188 Unknown_Attribute       0x0032   100   098   000    Old_age   Always       -
>      4
> ...
> 
> This article says that attribute 188 is "Command Timeout":
> http://en.wikipedia.org/wiki/S.M.A.R.T.
> "A number of aborted operations due to HDD timeout. Normally this attribute value
> should be equal to zero and if you have values far above zero, then most likely
> you have some serious problems with your power supply or you have an oxidized data
> cable."

BTW, the same article says that attribute 184 is "End-to-End error".

-- 
Andriy Gapon