I apologize if this has been discussed before. I just installed unRaid and drives attached to my Sas card (RocketRAID 2680SGL) are not showing up.  Is it a driver issue? Any help or knowledge on this matter would be greatly appreciated. 

unRAID doesn't deal well with RAID cards in general, go figure, it's UNraid, but if you can put the card in HBA mode somehow to let unraid manage the disks itself it may work.

 

However... that card uses a marvell controller, which is just bad news in general for newer linux based systems.

 

Bottom line, you would be much better off with LSI chipset based HBA cards, flashed to IT mode so the RAID part of the card is disabled.

I had a 2680...  Not a good experience.  Binned it in the end.  Support from HighPoint for other operating systems was also pretty patchy.