I am trying to setup failover with replication. I'm looking through the "How to setup DSS V6 iSCSI Failover with XenServer using Multipath" and something I don't fully understand.

The diagrams show that the physical interface is on a different subnet then the virtual IP and the interface complains and gives a warning if you try to create multiple interfaces in the same subnet. I showed the diagram to our network guy and he said I would need to have trunked ports and setup vlans.

So we did this and now I am wondering how to configure that. Searching through the forums it seems that DSS V6 does not support Vlans?

I came across this as I was attempting to setup my Oracle VM Servers to use trunked ports as well and that seems to be quite an endeavor.

So, I guess my question is, how am I supposed to have a physical interface on a different subnet as the virtual and not use a trunked port on a switch with VLANS?

I contacted my re-seller for support as I was wondering if the physical card actually needed to be routable or if it would suffice for the virtual IP to be routable. He said that he thought that only the Virtual IP subnet had to be routable but when I attempted this it didn't work.

To test this I has set the physical interface to xxx.xxx.0.4 and the virtual to xxx.xxx.1.4 with the switch port configured for xxx.xxx.1/24. I tried to ping the virtual ip and it did not respond. Maybe this is a bad test?

So now I have trunked ports on multiple vlans and don't know how I am supposed to configure DSS to work.

Can someone enlighten me? Have I totally messed this up?

thanks,