Sean - I did not answer this ""as this could be"" - only that they are different and the answer was correct in that they are different. Not sure if we are playing with interpretation details from your end or something else.... This is the second time you have done this - no more 3rd time .
Anyway moving forward....... just incase you need additional clarification, NAS is file base and iSCSI is block base (so a big difference). If he has an iSCSI volume he could setup a share for others within his system to use FTP/SMB/HTTP.... as many do currently with iSCSI. Clearly in our GUI we do not provide both NAS and iSCSI functions in the same logical volume only for separate logical volumes.