We have a 3170 with a single quad port FC expansion card (actually we have 2, one per controller). We have no plans for adding any more than the 2 FC loops already installed (we are going with SAS for all our new shelves), and we don't plan on using more than 2 of the onboard ports per controller as initiators. Our installer configured 2 of the onboard ports as targets along with 2 of the ports in the quad port HBA so we would have loop redundancy in the event we lost a PCI slot. I was just taking the NetApp NCIE-SAN practice exam, and it stated that target ports should never be mixed between the expansion cards and the onboard cards. Any thoughts on this matter?