[Lustre-discuss] Mount 2 clusters, different networks - LNET tcp1-tcp2-o2ib

[Thomas Roth]

Hi all,

I'd like to mount two Lustre filesystems on one client. Issues with more than one MGS set aside,
the point here is that one of them is an Infiniband-cluster, the other is ethernet-based.
And my client is on the ethernet.
I have managed to mount the o2ib-fs by setting up an LNET router, but now this client's LNET doesn;t 
known how to reach the ethernet-fs.

So the basic modprobe.conf reads
 > options lnet networks=tcp1(eth0) routes="o2ib LNET-Router-IP at tcp1"
This mounts the MGS on the o2ib network.

What do I have to add to get to the MGS on the tpc network?

Meanwhile I have studied more posts here and came up with
 > options lnet networks=tcp1(eth0),tcp2(eth0:0) routes="o2ib LNET-Router-IP at tcp1; tcp 
Default-Gateway-IP at tcp2"

Doesn't work either, but I see in the log of the (tcp-)MGS:
 > LustreError: 120-3: Refusing connection from Client-IP for MGS-IP at tcp2: No matching NI

Somethings getting through ...

Any ideas?

Regards,
Thomas