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I use laptop-mode-tools to save battery on my Asus TUF A17. I works fine but not for the hard disk : this one is going too much to sleep and wake up after every 10 seconds. So the Load_Cycle_Count is increasing too much.

meloli@Asus-A17:~$ sudo smartctl -a /dev/sda | grep Load_Cycle_Count
193 Load_Cycle_Count        0x0032   098   098   000    Old_age   Always       -       4321

I tried sudo hdparm -B 255 /dev/sda or sudo hdparm -B 254 /dev/sda wbut it does nothing...

The only things who seems to work is using spindown time

meloli@Asus-A17:~$ sudo hdparm -B 254 /dev/sda
/dev/sda:
 setting Advanced Power Management level to 0xfe (254)
 APM_level      = 254
meloli@Asus-A17:~$ sudo hdparm -S 242 /dev/sda
/dev/sda:
 setting standby to 242 (1 hours)

I tried something like this in /etc/hdparm.conf but I does nothin when using battery.

/dev/sda {
#   apm = 127
   apm_battery = 254
   spindown_time = 241
}

command_line {
    hdparm -S 241 /dev/sda
}

Everything works fine when using AC.

How to get my hard disk not to go to sleep too quickly when using laptop-mode-tools ?

Thank you.

Oli
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  • I'm not sure how to answer this because I have no idea how long you want your drives to spin for when on battery power. However, using a -B value greater than 128 will tell the drive "never spin down" so it doesn't matter what you set with -S as the APM value takes precedence over spin down. The answer over here might point you in the right direction for a solution. –  Feb 21 '21 at 13:01
  • I found the parameter BATT_HD_POWERMGMT=1 in /etc/laptop-mode/laptop-mode.conf which overrides /etc/hdparm.conf. I will try to change this. Source : https://askubuntu.com/questions/137544/how-to-change-harddrive-spindown-time – Oli Feb 21 '21 at 13:36

0 Answers0