A critical bug has been identified on all operating systems, whether Windows, Linux or MacOS for the management of hard drive laptops.

Description: Some computers seem to have one too many "parquages" of the read head of hard disk (moving the read head in an area where it is no longer above the disk), which can cause premature wear of hard drive. One symptom is hearing "click" the hard drive several times a minute or downright premature failure of the hard disk.

This problem seems due to the fact that, to avoid damaging the hard drive crash, the head tend to be cooped up far too often. Here is a list of PCs and hard drives that seem to be affected.

Personally, either Windows or Ubuntu, I noticed this phenomenon of "clicks" for several months without worry about it more. But as I see it could cause hard drive failures, it seems to me that this problem should not be taken lightly.

A little research [1] [2] [3] , here is a fix (temporary until an update ) for Ubuntu to level the problem (tested on my Dell Inspiron 6400):

Firstly, download the 90-hdparm.sh then copy the directories in the following:

  • / Etc / acpi / ac.d
  • / Etc / acpi / battery.d
  • / Etc / acpi / resume.d
  • / Etc / acpi / start.d

using the command :

sudo cp 90-hdparm.sh /etc/acpi/ac.d
sudo cp 90-hdparm.sh /etc/acpi/battery.d
sudo cp 90-hdparm.sh /etc/acpi/resume.d
sudo cp 90-hdparm.sh /etc/acpi/start.d

Normally, if your laptop is on AC, the first command will stop the noise. Otherwise, restart the PC. Take care that the drive does not begin to overheat, it would seem that this could happen to me ... nothing reported yet.

[Edict of 22-11-08]
Put in / etc / default / acpi-support parameter ENABLE_ LAPTOP_ MODE = true
and / etc/laptop- mode/laptop- mode.conf check CONTROL_ HD_POWERMGMT = 1.
[End]

Under a Debian patch has already been published . I do not know yet what it is for Windows and MacOS.

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