[linux-lvm] dm-multipath without round robin

[Jedi/Sector One]

  Hi Heinz.
  
  I'm awfully sorry for directly asking for help to you, but I'm cranking my
head on an issue you might have an immediate answer for.

  By default, dm-mpath-selector seems to always does round-robin between all
paths.

  Is there a way to do simple failover instead or round-robin, ie. define a
preferred path and keep the other one as a spare?

  It seems possible with md multipath, but then there is no way to create an
DM RAID0 over these md devices.

  Hope you can help,

       -Frank.