Many thanks for the clarification Marcelo,
That is very concise and straight forward. Number #2 really the good point of having DVS while Number #4, does it cause any major outage when the wizard migrate something to the DVS ?
As at the moment, I have to manage and replicate all of the VLAN/Port group setting for each of the ESX/ESXi servers manually.
Number #5 ? why is that ? does this means that if one of the pNIC Uplinks is faulty in one ESX host, the troubleshooting is very hard ?