[ltp] Re: Noisy harddisk shutdown

[Volker Braun]

Basically the drive can be informed to stop slowly (=> no noise) or the
power can be cut and the drive does an emergency park (=>clack). The
latter puts more mechanical stress on the drive, but still has a MTBF >
20,000 times. Since there is no way you can shutdown that often, it is
considered a non-issue (search recent lkml discussion).

-Volker


On Mon, 08 Nov 2004 19:38:00 +0000, Jan Frey wrote:
> 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?