Spin down HDD after disk sync or before power off

[Octavian Covalschi]

I think just HDD parking won't harm HDD, as my prev HDD was autoparking
constantly (safe or powersave reasons).
However in my case, I can hear a sound that is made by a vibration, it's
like plates are slowing down and something is vibrating (arm?).

It's kind the same with desktop PC, when your power is cut and your HDD are
stopped too sudden.

Thanks.

On Thu, Mar 5, 2009 at 8:25 AM, Joerg Sonnenberger
<joerg at britannica.bec.de>wrote:

> On Thu, Mar 05, 2009 at 08:58:50AM +0100, Oliver Fromme wrote:
> >  > This is not true. Many hard disks don't like having to do an emergency
> >  > shutdown as it affects the disk life time negatively. That's what
> >  > happens if you poweroff the machine when the disks are still spinning.
> >
> > Can you point to any authoritative information (URL) about
> > that claim, such as vendor specs, white paper or similar?
>
> Not without digging. NetBSD PR 21531 had a reference, but that is dead
> nowadays.
>
> Joerg
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