Here's the scoop.
Created iscsi LUNS on my Hyper V box that connect to my SAN. Mounted these LUNS to empty NTFS folders
Needed to increase the size of one of my VHDs by 20GB so i first increased the LUN, then expanded the VHD file using Hyper-V Manager from 20GBs to 40GBs.
Now when i open up my VM and go into Disk Manager I see the C: drive with 20GB of space and then another 20GBs of unallocated space.
Problem is, i should be able to right click on the drive and see the option to expand disk but i do not...