On Wed, 07 May 2014 20:57:29 +0200 J. Roeleveld wrote:
> On 7 May 2014 20:11:10 CEST, Walter Dnes <waltdnes@waltdnes.org>
> wrote:
> >On Wed, May 07, 2014 at 08:11:02AM +0200, J. Roeleveld wrote
> >> On Tuesday, May 06, 2014 05:34:52 PM Walter Dnes wrote:
> >> > 
> >> >   Unfortunately, mdev != udev.  People running RAID have
> >> > problems
> >too.
> >> 
> >> I know it isn't. I just find it strange that LVM can't work
> >> without udev when I see options which configure the LVM-tools
> >> to either double-check udevs actions or even completely bypass
> >> udev:
> >
> > Thanks for the pointer.  After turning off the udev-related
> > options in
> >lvm.conf, I'm getting /dev/mapper device nodes as expected.
> 
> That is good. Now if only mdadm can be confirmed to work with
> mdev. I could try it on one of my machines. 

And what is the problem with mdadm with mdev? I have such setup:
nothing special here and works fine.

Just to speed up device lookup:

$ grep -v ^# /etc/mdadm.conf 
DEVICE /dev/sd*

And here we go:

$ cat /proc/mdstat 
Personalities : [raid10] 
md0 : active raid10 sdd[3] sdf[2]
      2930265088 blocks super 1.2 256K chunks 2 far-copies [2/2] [UU]

Best regards,
Andrew Savchenko