Fiber Traffic

[Overkill]

All,  I have a backup server with fiber card or scsi card in it.  I'm 
seeing a lot of traffic on my network card and it should all be going 
thru my fiber card.   The fiber card is hooked up to some sort of tape 
device/robot.  Is there a way that I can view or see my fiber card 
device traffic?  I'm getting complaints that I'm clogging the network 
bandwidth and that shouldn't be the case.  Thanks guys!