Re: lvm on raidframe rcorder

[David Young <dyoung%pobox.com@localhost>]

On Mon, Oct 04, 2010 at 10:55:14AM -0400, Thor Lancelot Simon wrote:
> On Mon, Oct 04, 2010 at 09:00:25AM +0200, Adam Hamsik wrote:
> > 
> > On Oct,Sunday 3 2010, at 1:33 PM, matthew sporleder wrote:
> > 
> > > On Sun, Oct 3, 2010 at 3:18 AM, Michael van Elst 
> > > <mlelstv%serpens.de@localhost> wrote:
> > >> haaaad%gmail.com@localhost (Adam Hamsik) writes:
> > >> 
> > >>> Ah that's bug I will fix it soon, thanks for using/testing RAID + lvm.
> > >> 
> > >> What about RAID on LVM?
> > >> 
> > >> --
> > > 
> > > LVM should be able to create stripes and mirrors on its own.
> > 
> > Yeah I hope that we will be able to move mirror target forward now. 
> > (Stripes are already supported).
> 
> I find this kind of duplication of function in our kernel highly
> objectionable (lvm mirroring should not be *added*, ccd mirroring should,
> rather, be *removed*).

I agree with Thor, the ccd(4) functions should be rolled into dm(4)
somehow, and ccd(4) removed.  I reckon the best way is to make ccd(4) an
alternative interface to dm(4): you will still have ccd0..N instances in
your kernel, but ccd(4) as a distinct driver will be gone.

Dave

-- 
David Young             OJC Technologies
dyoung%ojctech.com@localhost      Urbana, IL * (217) 278-3933