1 per LU or session

[julian_satran@il.ibm.com]

There is a subtle argument against 1 connection/LU that plays in the
network.
Assuming that QoS will come into play in storage too (with SLAs and all the
rest)
and that in the network QoS decisions are based on flow it is not very
network friendly
to have a large number of TCP connections. With the current design
"virtual" control units
could aggregate - for an initiator - a number of LUs with similar QoS (and
virtual CUs are
also supported by our naming scheme).

Julo