[dm-devel] multipath device question

[Josef Whiter]

> Thank you very much for the answer. Would that mean the dm-multipath on
> one machine would happily coexist with the md-multipath on the other two
> machines? The setup of first two servers was done by the vendor and they
> did it the MD way. But, as I suspect, the md-multipath uses the
> superblocks to store info about the multipath array, so it seems to be
> dangerous to have different MD configuration on different machines
> conected to the same target drive.
>

MD multipathing is not cluster aware, so you are going to want to rip that out
of there and exclusively use dm multipathing.  Using md devices on a cluster
will lead to file system corruption.  Thank you,

Josef