At work we ran into a problem with our current server OS not beable to support volumes over 8 TB; what OS would best suit my needs here. We have tossed around a couple of ideas but are unsure with what to persue. If someone can please give me some ideas/reasons behind your ideas I would appreciate it.

Just so you know what kind of business we are into: We work in digital photography on the printing end of things. Novell has ran the servers for years but we ran into a wall after we installed our new SANS and novell not supporting a volume over 8TB. The server needs to beable to run 24-7 with a user load of 75-100 employees, with heavy read/writes to the server.