On Jan 16, 2008 2:06 PM, Bryan Henderson <hbryan@us.ibm.com> wrote:
quoted text
> >The "disk motor as a generator" tale may not be purely folklore.  When
> >an IDE drive is not in writeback mode, something special needs to done
> >to ensure the last write to media is not a scribble.
>
> No it doesn't.  The last write _is_ a scribble.

Have you observed that in the wild?  A former engineer of a disk drive
company suggests to me that the capacitors on the board provide enough
power to complete the last sector, even to park the head.

Regards,

Daniel
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