Re: [Evms-devel] Re: EVMS Submission for 2.5

[Mike Tran <mhtran@us.ibm.com>]

Christoph Hellwig wrote:

> On Thu, Oct 03, 2002 at 10:03:41AM -0500, Shawn wrote:
> > On 10/03, Christoph Hellwig said something like:
> > > On Wed, Oct 02, 2002 at 04:33:20PM -0500, Kevin Corry wrote:
> > > > EVMS provides a new, stand-alone subsystem to the kernel
> > >
> > > i.e. it duplictes existing block layer/volume managment functionality..
> >
> > Ok, LVM1 is non-existant if that's what you're referring to. Really,
> > this replaces LVM1, but your statement WRT md still has merit. As for
> > md duplication, it has been stated already that a preferred approach
> > might be to send only core functionality bits for now, leaving that
> > out till that question can be addressed.
>
> I speak of all drivers/md/* and fs/partitions/*.
>

I have sent Neil Brown an email asking for his thoughts on a possible code
merge.
Neil is on vacation until 10/7.

I would say that the EMVS MD code & original MD code are very similar.
The most significant difference is the MD array discovery and setup code.
EVMS MD does in-kernel discovery, whereas Linux MD has both in-kernel
discovery (via fs/partitions/check.c) and user space initiated discovery
(IOCTL).

Mike Tran