Hi,
I tried to configure my 5.1 home lab to use several vmk portgroups/vmnics for vMotion tasks.
To do so I created a second port group on my distributed switch and configured both vMotion PGs to use different dv uplink ports by moving the other vD uplink ports to the unused section. Then I created a second vMotion vmk-adapter for my 2 hosts, configured them to act as vMotion adapters, assigned them to the second vMotion PG and configured an IP address.
First I put them into a separate subnet but the vMotions failed because host1 tried to connect from subnet A to subnet B on the destination host and the other way arround. As a workaround I'm now using my existing vMotion network for both vmk adapters.
While doing a couple of simultaneously vMotions and monitoring the network of both hosts with esxtop I can see that esx2 uses two vmk ports for the job like it should but esx1 just utilizes a single vmk. I doublechecked the settings of the non-utilized vmk of esx1( vMotion-role, IP-address, PG-teaming settings, mapping of vmk<->vdUplink<->vmnic, everything should be fine.
Any ideas where else to check for the problem? I'm also curious why the setup with different vMotion subnets didn't work. Do they have to be in different vlans in order to work?