Re: noflushd: making/having drives spin down.
On Tue, 6 Jan 2004, Micha Feigin wrote:
> On Mon, Jan 05, 2004 at 01:36:48PM -0800, Mike Mestnik wrote:
> > I have a dell8900 and I can't seam to get the drive to spin down on 2.6.0-test9. The drive makes
> > a noticeable whine that can be heard across the room. I'd like the noise to go away, that is more
> > important than saving battery power for me.
> >
> > I'm using noflushd but it has no effect, I also tried hdtune.
> >
>
> Look at the -M option of hdparm:
> -M get/set acoustic management (0-254, 128: quiet, 254: fast) (EXPERIMENTAL)
That'll do no good.
-M just makes seeks slower. The OP is complaining about the constant whine
of the HD spinning. I would agree with him - my I4000 is really quite
disturbingly loud -- in a room full of computers.
noflushd is the best solution, as long as you don't use journalling
filesystems - although there is currently work in that area (seek google
for "laptop-mode" kernel patches)
Having said that, noflushd induces a bug in the kernel that is a killer
for me - threads become zombied after 43 minutes, eventually filling the
process table:
http://sourceforge.net/mailarchive/forum.php?thread_id=2060865&forum_id=4904
(gee, that mailing list has a lot of spam)
--
TimC -- http://astronomy.swin.edu.au/staff/tconnors/
The Klein-Gordon equation was derived by Schroedinger.
Hence its name. -- Peter Robinson, Rel. Quant. Mech Lecturer.
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