How many switches are you using and is there a dual path to the target LUN
sounds like you have one switch and the two paths are being picked up hence two datastores, basically the old multipathing problem. VMware picks up any VMFS dtastores once formatted so you would not be asked about the second it would just be presented.
Hope this helps
Thanks, you are correct. All I had to do once th second node was selected was refresh the display and the new datastore was good to go.