On 2021-08-16 15:13, Florian Schmid wrote:

Is this really the case? Is the pNFS process really not Vlan aware and sends any IP from that node where volume is located, even when the IP is in a different network than the client IP?

Yes. That's how pNFS is supposed to work. That's the whole point one can say, of pNFS. It's striping of the data traffic (not metadata) across several nodes, all at once.

In that respect, the setup you say you have, this:

"On the vServer, we have several different Vlans and each Vlans has an interface for each node there. Our storage network is completely switched, so no routing between Vlans possible."

is totally wrong for pNFS. In such a set up you definitely do not want pNFS.

/M