Earlier last year Seagate released the first enterprise level 10TB hard disk drives onto the market which do not use techniques that reduce data transfer throughput. The drives as is now industry standard are helium filled and hermetically sealed, allowing for lower vibration and power requirements.
The Pro version of the IronWolf drive still uses the Perpendicular Magnetic Recording (PMR) method and although it does not give the same capacity as the largest available enterprise level drives on the market, introduces some key features. Rotational Vibration (RV) sensors were introduced to the largest IronWolf drives, which help to reduce the overall level of vibration in NAS system, allowing up to 16 drives to be placed into a single unit.
The overall workload rating for the previous IronWolf drives was 180TB, which has been significantly increased to 300TB per year for the Pro range, which is over 5 times the average workload rating of a standard desktop drive. The Pro range also increases the warranty period from 3 years to 5 years.