As Jason Thorpe wrote...
> On Tue, 9 Jun 1998 13:55:25 -0700 
>  Matthew Jacob <mjacob@feral.com> wrote:
> 
>  > I still want to know why we would do this if disks aren't set
>  > to cache data? 
> 
> I think the question is "Can it hurt?"  If the drive isn't set to writeback,
> then there won't be any remaining blocks to sync, which is not an error.
> 
> I think I'd prefer to err on the safe side :-)

FWIW this is the approach Digital takes with it's drives. 

> I think Gordon's "spin down" idea is good, too... once the sync operation
> is complete, maybe spinning down the disk isn't such a bad idea, too...

Not all drives 'listen' to the spindown command.

Wilko
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