have an interesting situation in our VMware Infrastructure. We have what appears to be 2 DataCenters observed in our vCenter Server 5.5. All hosts are ESXi5.5.
I have always worked vMotion under the belief that I could not vMotion a VM in one DataCenter into a host on another DataCenter. Each DataCenter supports different vLan subnets. However, in our situation that appears NOT to be true. We have been able to vMotion a VM from DataCenter2 to DataCenter1. The odd thing is that we CAN NOT vMotion the other way around. So, vMotion is only one way.
I thought this might be explained by looking at the way the switches are setup in each DataCenter.
DataCenter1: Hosts on this DataCenter are setup with standard virtual switches.
DataCenter2. Hosts on this DataCenter are setup with dvSwitches
I don't see any VMports or management network assigned to the IP addresses on either DataCenter.
The shared storage also is different and that is what I would expect since each DataCenter hosts its own SAN.
So, I'm confused. How is it that a VM can vMotion across DataCenters?