Re: Generic PCI IDE bus-mastering DMA support

mlord (mlord@pobox.com)
Mon, 22 Sep 1997 15:09:18 -0400


Andrea Arcangeli wrote:

> >It is a HIGHLY RECOMMENDED practice to turn it off again during
> >shutdown,
> >by using something like:
> >
> > ## turns off IDE write caching
> > hdparm -W0 /dev/hd[a-d]
>
> What can happen if I don' t turn off the -W flag before halt?

Then you might power-off your drives before they have finished
writing everything to disk.

-ml