Festplatte schlafenlegen

http://www.tacticalcode.de/2013/01/festplatte-automatisch-in-standby-mit-hdparm-und-udev.html

 

https://arashmilani.com/post?id=86

 

( https://www.freedesktop.org/software/systemd/man/systemd.unit.html )

https://unix.stackexchange.com/questions/404667/systemd-service-what-is-multi-user-target