in a typical scenario, the fibre channel raid should show up as at least one un-initialized disk in disk utility. From there it is up to you to put the file system on it... HFS+, etc...
With a decent length fibre cable you should be good to go, and plenty of speed. (at least 500MB/s)
-Jordan
http://www.activestorage.com
Senior Systems Engineer
Active Storage Labs
Los Angeles, CA