It only seems nature that alternate pathing support be added to the drivers for IP-based storage, but no one has done this yet. From what I've heard, those companies that are trying to raise IP to acceptable performance by embedding par of the TCPIP protocol stack into cutom NIC cards are trying to use their same drivers, so they obviously haven't addressed the problem yet.
I suspect we'll see it addressed sometime next year. I would wait for the new NIC cards to settle out anyway. You are making an infrastructure change when you go that direction, so you want to be very sure about what you have.
This was first published in July 2001