A customer is currently using a Windows file server to share NFS storage (9 TB) to theirapplication server, and a small SAN to supply block I/O to their database servers (5 TB). As theircurrent hardware is aging they are looking for a new best of breed technology to combine file andblock I/O on a single storage unit. Which IBM solution would provide that capability at the lowestcost?（）

• A、 IBM XIV Storage System 
• B、 IBM System Storage DS8700 
• C、 IBM System Storage N6070 
• D、 IBM System Storage N6210