Comment # 60 on bug 816388 from kolA flash

Created attachment 615483 [details]
hdparm related files from kubuntu-14.04.1-desktop-amd64

More information:

Tested with an openSUSE 13.2 x86_64 KDE live-image on my notebook (from USB
memory) on ac-power.
Started "hdparm -B /dev/sda" after booting. Result: 128



Tested kubuntu-14.04.1-desktop-amd64.iso on my notebook (from USB memory)
Started "hdparm -B /dev/sda" after booting. Result: 254

Looks like these files (extracted from the Kubuntu system) are the reason, why
Kubuntu has a value of 254.
(attached a copy of these files in the provided zip file)

/etc/hdparm.conf
/lib/hdparm/hdparm-functions
/usr/lib/grub/i386-pc/hdparm.mod
/usr/lib/pm-utils/power.d/95hdparm-apm

I propose openSUSE should do it the same way!
(maybe we have to do it via systemd instead of power.d)

Nevertheless, the Kubuntu file "95hdparm-apm" says "On battery we set hdparm -B
128".
I think also on battery openSUSE should use a value of at least 192 or higher!
Every 2.5 inch hdd I have, has dramatically increasing loads/unloads for values
smaller than 192.
Spending a little more power is less worse then breaking peoples hdd's!!!