Hard drives can be forced into hibernate using hdparm. While it was quite easy to implement automatic setting this hibernation values by inserting the appropriate command (hdparm -B intervall device) into /etc/rc.local (which was executed after the boot) on sysvinit-based Linux distributions this changed on newer systemd-based systems. It is a good idea to implement this behavior as a service.
First you need to create a system-wide service and activate and start it afterwards:
# vi /usr/lib/systemd/system/sda-spindown.service [Unit] Description=Set HDD spindown [Service] Type=oneshot ExecStart=/sbin/hdparm -B 241 /dev/sdb RemainAfterExit=yes [Install] WantedBy=multi-user.target ESC ZZ # systemctl daemon-reload # systemctl enable sda-spindown.service # systemctl start sda-spindown.service
You can verify that the value has been set successfully using the service management:
# systemctl status sda-spindown.service sda-spindown.service - Fix excessive HDD parking frequency Loaded: loaded (/usr/lib/systemd/system/sdd-spindown.service; enabled) Active: active (exited) since Sa 2014-10-11 14:27:16 CEST; 3min 32s ago Process: 4336 ExecStart=/sbin/hdparm -B 241 /dev/sda (code=exited, status=0/SUCCESS) ...
Many thanks to the following blog that gave me the tip: [click me!]
Another (probably nicer) solution is to create a udev rule: [click me!]