Mayuresh <mayur...@acm.org> wrote: > On Sat, Jun 10, 2017 at 08:56:29PM +0200, Leonardo Taccari wrote: > > No idea if that will increase/decrease disk life span but I think > > that `atactl <device> setidle 0' and/or `atactl <device> setstandby 0' > > is what you're looking for! > > Thanks. Actually setidle and setstandby to 0 did not stop clucking sound, > to put objectively Load Cycle Count kept growing. > > But atactl wd0 apm set 253 did stop the nuisance completely. > ..
Good info! I've been listening to the disk on my old thinkpad do a similar thing for a long time and this does seem to fix things. As to resetting upon reboot you could probably just use root's crontab with @reboot . I'm wondering: is there any way to read the current APM setting for a disc using native tools? All I see with atactl(8) is 'identify', 'checkpower' or 'smart status', none which gives a numerical value. The following is readable via smartctl(8) (smartmon pkg) after setting the apm value: % sudo atactl wd0 apm set 253 % sudo smartctl -d ata -T permissive -g apm /dev/wd0d .. APM level is: 254 (maximum performance) Running 'sysctl hw.' or 'pcictl pci0 dump' was also a bust. Jeff
