I have direcly connected (with fibre) a HP ProLiant BL460c G7 with a EMC CX4. I installed VMWare Esxi 5.0. The problem is that cx4 cannot connect to the blade. It seems that there is no connectivity problem, because the server can be connected to fibre switch with other equipment (EVA 4000) and also cx4 is already atteched to one same server.
The problem seems to exist somewhere between the cx4 and esxi when they are direclty attached.