WD Red drives will let you add storage 10TB at a time
 

We all love solid-state storage. Modern SSDs are fast, dense, and not too expensive, relatively speaking. That is, relative to what they used to cost. SSDs are still pretty expensive compared to hard drives, so if you need to cram tons of terabytes of data into a server somewhere (and you don't work for a national laboratory), you probably want spinning rust. WD can actually let you do it ten terabytes at a time now with its new 10TB Red and Red Pro hard drives.

http://techreport.com/news/31935/wd-...10tb-at-a-time