HGST has not disclosed how many helium-filled drives it plans to produce per years, however, it did say the hermetically sealed drives will be a whole new "platform," meaning there will be numerous products being developed.
In the fourth quarter of this year, Western Digital shipped 71 million drives. Using a far-smaller number -- taking into consideration the helium-filled drives are a new product -- Garvey performed some initial calculations based on 500,000 drive shipments per year. Her conclusion was that consumption level is less than 1 million cubit feet per year, "a minor blip when you consider we produce 6.2 [billion cubic feet per year.]"
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