sign up for a free account like Google Drive or Drop Box. Try to upload a 2 Gig file. Now tell me how you are going to upload 16 Terabytes of media to the cloud. Simple answer - you are not going to.
Cloud is not used to back up your video media. Its used for client review and approval, with h.264 files.
Unless you are willing to spend the big bucks for a huge data pipe, we are all at the mercy, and will continue to be at the mercy, of the cable providers. You can buy the coolest products from Media Silo, Aspera, Signiant, etc, and unless you are willing to spend THE BIG BUCKS for a monthly huge pipe, the cloud will be useless to you for doing backup of your media.