No fucking kidding. A selection of things I've been told over the last few days by tech support:
"Having a bonded interface for metadata traffic actually causes higher latency. Since you only have one ethernet network, that wouldn't be a good idea especially if video capturing/editing is involved. … Unfortunately we don't happen to have any documented figures. Apple recommends having a single unbound dedicated interface for metadata."
"Why are you using zoning on your [FC] switch?"
"If you want load-balanced multipath to work, you need to connect your [two separate FC fabrics] together."