Needs '-v 9,msec24hour32' param for smartctl-5.41+svn3365-1 in Ubuntu LTS 12.04 precise

[braveheartleo]

Hello linrunner,

Thank you so much on making tlp power management available on Ubuntu.

There is a slight problem, however, concerning the display of hdd temp in tlp-stat. Without the '-v 9,msec24hour32' smartctl parameter, hdd temp looks like this:

+++ Storage Devices
/dev/sda:
Model = ST9500325AS
Firmware = 0011LVM1
APM Level = 254
Status = active/idle
scheduler = cfq

    SMART info:
        4 Start_Stop_Count          =      579 
        5 Reallocated_Sector_Ct     =        0 
        9 Power_On_Hours            =     30245159701825 [h]
      190 Airflow_Temperature_Cel   =       41 [°C]
      193 Load_Cycle_Count          =    17459 
      194 Temperature_Celsius       =       41 (0 23 0 [°C]

As you can see, the Power_On_Hours displays hours value that doesn't make sense. Using the formatting msec24hour32 for SMART attribute 9, it now shows:

       9 Power_On_Hours            =    3339 [h]

This seems to be an issue in smartctl-5.41+svn3365-1 that ships with this Ubuntu release. Later versions of smartctl doesn't exhibit such issue on another distro I run on this computer.

[linrunner]

Hi,

planned for the next release. Thanks for your report.

[braveheartleo]

Good to hear about that.

[linrunner]

Did you try smartctl -A -v 9,msec24hour32 on the "other distro" you mentioned? Are the Power_On-Hours correct with the unneeded param?

[braveheartleo]

The other distro is Debian sid. tlp-stat works flawless there. Power_On_Hours displays correctly. I need not tinker with the script.

But in Ubuntu 12.04, I had to slightly modify tlp-stat:

 readonly SMARTCTL="smartctl -v 9,msec24hour32"

so that tlp-stat displays Power_On_Hours correctly. Perhaps this is some issue between smartctl-5.41 and this particular hdd drive model? I don't have another PC to test 12.04 on to see if smartctl-5.41 will produce the same Power_On_Hours display on a different drive that needs the smartctl formatting parameter.

[linrunner]

I don't like case distinctions in the code very much. If you make the modification on Debian too, does tlp-stat still display the correct value?

BTW: none of my systems/disks shows this behavior with 12.04.

[braveheartleo]

Correction:

 smartctl -A -v 9,msec24hour32 /dev/sda

still displays the correct time, but expanded to Xh+Ym+Z.Ms.

So I guess this is an isolated case between my particular hdd drive model, and smartctl-5.41.

Thank you for testing the premise of my issue. I would just have to make my modifications after each tlp update, to address this issue, or better yet, I'll see if I can compile a later version.

[linrunner]

Could you provide the relevant output of

smartctl -A -v 9,msec24hour32 /dev/sda

on Debian?

[braveheartleo]

I went ahead and recompiled a recent smartmontools version for Ubuntu 12.04.

This was just an isolated case between my drive and smartctl-5.41. Sorry for the false alarm. Case closed. :-)

[linrunner]

OK :-)