On Thu, Oct 6, 2011 at 2:14 PM, Jarry <[email protected]> wrote: > Hi, > > In my server I have a few disks which must be running 24/7, > but I also have a single big hard-drive, which is used only > for a few minutes every day, just for backups. How could I > power disk off when not needed (and "on" again when needed) > in order to save a little power and prolong its life?
Use hdparm to set the power-saving level. Also look into general power-saving tips for linux laptop users which may help reduce unnecessary accesses to that drive. Maybe even use laptop-mode-tools.

