For many users the purchase of a 6TB SSD is out of their price range and for many businesses who need long term storage the return on investment simply doesn't justify an SSD.  In some cases tape backup is sufficient but not always which is where products like Seagate's 6TB Enterprise drive excel, a 7200 RPM with an impressive 216MB/s stated sustained transfer rate.  It comes with a 5 year warranty and is rated at 550TB per year which means that even if it is heavily used you should not expect failure rates to be high.  It does cost a bit at $480 which makes the SAS 4TB model a bit more attractive but when your data needs its space it is hard to find a larger drive.  Check out the benchmarks at Overclockers Club.

"Compared to your standard consumer level 3TB drive this thing is double the capacity and brings home the money with the performance. To have capacity and performance at the same time is the golden ticket. Although this drive has the added cost of being an enterprise drive, having dealt with some enterprise drives I can say it is well worth it if longevity and long up time is what you are looking for.”

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