Hard drives: Up to 60 TB capacity thanks to the HAMR technology
March 21st, 2012 - 03:36 pm ET by D. T.
Seagate Technologies research laboratories have made it known that high capacity hard drives will be available in a few weeks with tens of terabytes capacity.
While hard drives storage density is currently limited to 620 Gbits/inch², with it not being possible to go above this due to the use of the Perpendicular Magnetic Recording technology since 2006 which now seems to have reached its limits, Seagate Technology has announced that they will very soon be able to significantly increase this limit. By using another technology called Heat-assisted Magnetic Recording, the California based engineers are now talking about a density of 1 Tbit/inch².
With hard drives capacity currently limited to 4 TB in the 3.5 inch format and 750 GB in the 2.5 inch format, this higher density will be widely exploited when available. The theoretical limits of the HARM technology will allow higher capacity drives. There is now talk of drives that are from 30 to 60 TB in the 3.5 inch format and 10 to 20 TB in 2.5 inch format in the coming ten years thanks to a density of 5 or 10 Tbit/inch².
This should allow hard drives to remain relevant in face of SSD devices for a few years yet. While SSD are more reactive, silent, resistant and energy efficient, they are still a long way behind in terms of storage capacity.