Hi, On Sat, Jan 02, 2010 at 01:14:16PM +0100, Jan Ceuleers wrote: > vrinda vasishth wrote: > >> Most likely that's due to hdparm -B . > >> > > the output of "hdparm -B" is: -B: bad/missing power-management-mode value > > (1..255) > > > > what does this mean? > > man hdparm : > > -B Query/set Advanced Power Management feature, if the drive sup‐ > ports it. A low value means aggressive power management and a > high value means better performance. Possible settings range > from values 1 through 127 (which permit spin-down), and values > 128 through 254 (which do not permit spin-down). The highest > degree of power management is attained with a setting of 1, and > the highest I/O performance with a setting of 254. A value of > 255 tells hdparm to disable Advanced Power Management altogether > on the drive (not all drives support disabling it, but most do). > > Cheers, Jan
Argh, no, sorry, I meant to inform about hdparm -M (Automatic Acoustic Management), not plain -B power management settings. Thanks for posting the -B help text, that managed to kick my ar** ;) Andreas Mohr _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
