[Linux-cluster] Mirrored shared disks

[Denis Medvedev]

Dear sirs,
I am trying to make the following configuration:
a two node cluster, each node exports its own (identical in size) device,
each node imports the device from its neighbour,
a md device which is a composition of own and exported neighbour device 
is created on each node,
lock_dlm is used as a locking system, a gfs is used on each node for 
that md device.
Will it work? Isi it possible to create no-single-point of failure if I 
have 2 storage that expose iSCSI devices and I want to make a mirror 
based on both of them?
                                                                      
Thanks in advance
                                                                      
Denis Medvedev