[Pacemaker] DRBD resource over it's own crosscable?

[Kees]

Hi all,

I'm testing heartbeat/corosync. I've been able to make a simple 
two-node-cluster with drbd. Now i want to build a 3-node cluster.
Two nodes for storage with drbd. The third node as to become a webserver 
getting his data via NFS from the master storge-node.
Sounds simple. But i ran into the first problem. I've would like both 
storage-nodes to exchange drdb-data over an (faster, 1Gb/s) link 
(crosscable).
Do i have to configure a second ring in corosync.conf for the drbd to 
work over this crosscable-link, just like many examples show?
My webserver is not on that second ring, when i try to do that i get an 
error: status  = Marking ringid 1 interface 192.168.0.1 FAULTY - 
adminisrtative intervention required.
I seems corosync.conf has to be the same on all nodes, is that true? if 
so, is there a way to let the drdb work on is own link?

Greetings

Kees