On Saturday, February 23rd, 2013, at 20:05:00h +0100,
Frits explained:
> Nope, I've looked arround in the etc directory but there lives no
> hdparm.conf.
Do you have the hdparm package installed?
> By the way, my nas is a readynas duo with fw 4.1.9 so maybe the hdparm
> values are in an other place.
You are posting in als.os.linux.debian so that tends to imply that
your question is with regard to a Debian installation, regardless of
hardware.
Does
man hdparm
on your system give an indication of where the configuration file
should be placed, as in
FILES
/etc/hdparm.conf
Regardless it may just be that /etc/hdparm.conf on your system
has become lost in the mists of time.
Create one with the contents advised by Ivan Shmakov,
reboot and see (provided hdparm is installed) if hdparm
runs with that new configuration.