On Sat, 25 Jun 2016, Mayuresh wrote: > Does invocation of "smartctl -a /dev/sda" cause any mechanical movement > really?
No, but you are not allowing the disk to unload the heads. Unloading heads actually move them either off-platter, or at a specific position that rises (or locks) the arms a bit more away from the platters. This trades arm flex (unloading) for time flying near the disk surface. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh
