Comment Enterprise Storage Option (Score 1) 320
Home brew solutions are good for a small business, but once you move into multi-terabyte solutions, you should consider a more Enterprise ready solution. If I were in your position, I would consider a dedicated storage area network device such as an EMC VNX or NetApp storage array. Both handle multi-terabyte solutions well. Both are also easy to manage and integrate well into most network environments (CIFS / NFS / FC / FCoE / iSCSI). If you are looking for just NFS / CIFS, Isilon also makes a very fast and scalable NAS device that is super easy to manage.