Welcome to the forum.
I'm not sure to understand your question.
If is related with your other post, then the anwser is that the copy operation could be (in some cases) delegate to the storage with the VAAI function:
http://kb.vmware.com/kb/1021976
Or, if you have a NFS storage, you can simple copy the files from the storage and then add to the inventory.
Andre
Andrew | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro