Andre Hedrick ([EMAIL PROTECTED]) wrote on Wed Mar 07 2001 - 01:58:44 EST :
> On Wed, 7 Mar 2001, Jonathan Morton wrote:
[ snip ]
> > >Since all OSes that enable WC at init will flush
> > >it at shutdown and do a periodic purge with in-activity.
> >
> > But Linux doesn't, as has been pointed out earlier. We need to fix Linux.
>
> Friend I have fixed this some time ago but it is bundled with TASKFILE
> that is not going to arrive until 2.5. Because I need a way to execute
> this and hold the driver until it is complete, regardless of the shutdown
> method.
I don't understand 100%.
Is TASKFILE required to do proper write cache flushing ?
> > >Err, last time I check all good devices flush their write caching on their
> > >own to take advantage of having a maximum cache for prefetching.
> >
> > Which doesn't work if the buffer is filled up by the OS 0.5 seconds before
> > the power goes.
>
> Maybe that is why there is a vender disk-cache dump zone on the edge of
> the platters...just maybe you need to buy your drives from somebody that
> does this and has a predictive sector stretcher as the energy from the
> inertia by the DC three-phase motor executes the dump.
So where is a list of drives that do this ?
www.list-of-hardware-that-doesnt-suck.com is not responding ...
> Ever wondered why modern drives have open collectors on the databuss?
no :-)
--
David Balazic
--------------
"Be excellent to each other." - Bill & Ted
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