If I understand in Vmware, when we need to add storage.
We'll go to Storage Adapter and add the Target storage(IP address of the provisioned LUN)
then go to Storage and do the rescan to make the storage show up.
However I have seen some scenarios where prior to what have been stated above, they create a VMkernel , and then label it for instance Storage, and I believe they point it to the IP address of the provisioned storage, if I remember.
I hope someone can clarify it better..