[libvirt-users] iscsi w/ libvirt

"Playing" with a NAS capable of iscsi ... trying to make use of it within the virtual machine manager. Could someone point me at or provide me an example/screenshot of adding iscsi to my KVM-host? I think I still don't get it. Should I add an iscsi-LUN as a storage-pool? Or as single disk to a VM? Could someone pls point me at some docs to make me understand? Thanks a lot, Stefan