Posts with the tag energy efficiency
hdparm's man page on the CLI parameter
Put the drive into idle (low-power) mode, and also set the standby (spindown) timeout for the drive. This timeout value is used by the drive to determine how long to wait (with no disk activity) before turning off the spindle motor to...
If you want to adjust the spindown time of the hard disk drives of your Mac OS X based computer, you can simply run the following command (which will set the spindown from the default 10 minutes to 30 minutes for all HDDs on your system):
pmset -a spindown...
see also: http://wiki.ubuntuusers.de/Schlafmodi
$ sudo /etc/acpi/sleep.sh force
$ sudo echo mem > /sys/power/state
or as gdm does it (see
/etc/gdm/gdm.conf → constant
$ sudo /usr/sbin/pm-suspend
you can run this script and therefore suspend remotely with ssh option
-t to prevent echo on the terminal: