[dm-devel] Re: LVM on dmraid breakage

[Phillip Susi]

Alasdair G Kergon wrote:
> But I don't yet see why it didn't also open the other devices, write a warning
> message about duplicate IDs, and do the right thing and give them
> precedence.

Why would it open the other devices?  LVM does not scan /dev/mapper/*, 
only /dev/sd*.  Since it does not scan the /dev/mapper devices for pvs, 
it sees no duplicates and can not "do the right thing".