This video is a guide how to setup iscsi targets on unRAID by using a VM of Openfiler.
It shows how to set it up and connect to the iscsi targets from a windows computer.
(Although you can connect from other OSes as well)
I try using both Gigabit Ethernet and 10GB Ethernet and see what kind of performance that
I could achieve.
ISCSI is useful if you need to install software that will not install on a normal SMB network drive.
Blizzard games being an example. Hope you find it useful