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

Thomas Roth t.roth at gsi.de
Tue Jun 14 09:23:54 PDT 2011

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?


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