NetApp Virtual File Manager (VFM) or even Widelinks to create a namespace (if CIFS) works... it won't get you one big directory over 12TB usable but most of our customers who think they need a 100TB mount point can easily have 10x 10TB volumes on the backend as long as each show under the same directory structure... use DFS or widelinks to create a root namespace then stitch the volumes wherever you want.. none of the buckets will hold over 10-12TB usable but the top level will be a large mount point. If you need a 100TB directory (ouch) then other customers of ours have Acopia which splits writes by files across multiple volumes without going to GX.
