Julien,
Thanks for the reply. I've still reading the best practies documentation. However, I have 3 storage units instead of 2, thus making me wonder if' it's too much traffic for just 2 switches.
I realized I needed a better diagram to explain my existing system and it's bottlenecks. No we are not using Round Robin, so 100% of the traffic is going over the 10.0.12.x network.. which is just one cable too.