Why would you have the volumes in seperate iSCSI Targets?

The way I have it setup and the most typical way to do it would be:

On the DSS - Target0 -> Contains LUNs for all 4 volumes. LUN IDs should be 1,2,3,4 (NONE set to 0)

VMWare doesn't like when you mess with Targets, but LUNs are a little easier to mess with. Basically, if you wanted to increase the size of the volume for let's say... LUN 4, you would remove LUN 4 from that target, resize the Volume, then re-attach to the target as LUN 4 again and rescan on the ESX server.

Feel free to email me at: (drewmeyer at 1parkplace dot com) and I can exchange screenshots of my setup so you can see it firsthand.