I cannot speak for the IBM, but I have extensive experience with the EVA-3000 and EVA-5000. Both are excellent SAN storage devices. The EVA is a very mature platform – originally designed by DEC. The IBM product is very new.
You also posted previously about weather to use NAS or SAN. I have specific experience with Network Appliance NAS devices running Oracle. I believe that Oracle actually uses Dell servers and NetApp storage for some of their hosted servers. It works very well.