No problem, it was in fact supposed to be a hint to check some configurations.
About the link connections, if you have a "campus cluster" with no difference in the speed link between intra-site connections and the inter-site connection, than you can also use the cluster as it is since the inter-link is not probably going to be a real bottleneck (depends on the amount of traffic) but anyway is not the best design to have VMs running in a site and using the storage from the other site. But as you can see from the link I gave you, there are problems with LEftHand to make it serve data from the correct site.
Luca.
