[ltp] Noisy harddisk shutdown

[Jan Frey]

Hi Nils,

maybe I did not describe the sound detailled enough.. Your description 
pretty much sounds like the head load/unload procedure which modern drives 
are performing in order to save power. This small "click" can be avoided 
by setting different APM levels on the drive. For IBM/Hitachi it is most 
probably enough to issue "hdparm -B 192 /dev/hda", where 192 can be 
replaced by any value 192<=x<=254 (255 means Power Management off).
Of course this will have (negative) effects on power consumption...

What I meant is a really loud CLACK when hd goes completely down. It sounds 
as if power was just taken away from the drive instead of telling it to 
park heads and spin down...

Br
 Jan

On Monday 08 November 2004 18:45, pub@wigginghaus.de wrote:
> Hi Jan,
> I experience the same problem with my R50. However my harddrive makes
> this noise (Especially "Clack"!) not only when shutting down but also
> every now and then during normal operation. I agree that it does not
> sound healthy so I am backing up even more frequently. Also I can report
> that it happens under Windows as well.
>
> Nils
>
> Am Montag, 8. November 2004 20:38 schrieb Jan Frey:
> > Hi,
> >
> > when turning my notebook (A30p, kernel is 2.6.7, APM, HD is
> > Hitachi/IBM HTS548060M9AT00) the harddrive quite often gives a
> > terrible noise (djjjj-CLACK!) just microseconds before screen goes
> > blank and power is off. It really does not sound healthy. Anyhow,
> > drive is absolutely new and does not show any problems elsewhere. Also
> > sound never appears when using suspend-to-disk. So I guess there must
> > be ways to avoid this (power management settings, sending hd to sleep
> > before power off, etc.) Any ideas?
> >
> > Thanks for help
> > Jan
> >
> > --
> > Jan Frey
> > jfrey@gmx.de

-- 
Jan Frey
jfrey@gmx.de