Yes I have two FC volumes on this system, 536GB and 640GB, and it is actually working fine, FC volumes are visible to clients.
I have another server working for a year under v6 Lite license with both FC and iSCSI volumes using H/W RAID-5 with 6x146GB drives. I'm not able to manage the RAID units form the GUI, but there is no problem to configure any volume groups, volumes, FC and iSCSI groups.
And I had one more system before with the Lite version working with FC volumes.
The question is - why does the server report storage size wrongly? How can I fix it? I shouldn't matter if it is FC or NAS volumes as soon as the storage size is within licensed capacity.