Unfortunately it's not possible to use FC connection for the volume replication.
You can only use 10GB NICs or IP over infiniband for the volume replication link.

You can find this useful video: http://vimeo.com/19118233
that you can do "Volume Replication (Fiber Channel, iSCSI and NAS Volumes)", and you need to use Ethernet NIC card of Infibiand to do it, and you cant use "Fibre Channel network cards " for that.