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SubjectRe: [Evms-announce] EVMS announcement
On Wed, Nov 06 2002, Arjan van de Ven wrote:
> On Wed, 2002-11-06 at 14:55, Alan Cox wrote:
> > On Wed, 2002-11-06 at 00:16, Lars Marowsky-Bree wrote:
> > > Now, an interesting question is whether the md modules etc will simply be
> > > continued to be used or whether they'll make use of the DM engine too? Can
> > > they be made "plugins" to DM or the EVMS framework? Or even, could EVMS (in
> > > theory) parse the meta-data from a legacy md device and just setup a DM
> > > mapping for it? That would appeal to me quite a bit. I really need to start
> > > reading up on it...
> >
> > I'm certainly hoping to kill off ataraid/pdcraid/hptraid by using device
> > mapper and md
>
> absolutely. The biggest issue with this is that DM needs to be able to

Especially because the code is so ugly :-)

> handle chunks where 1 page is split across 2 strides on disk... if/once
> DM (and BIO) can deal with that the rest isn't hard...

That's a helper that's been on my todo for a long time, so it should be
pending very shortly..

--
Jens Axboe

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