Seagate has managed to a storage density of 1 terabit per square inch, about 0.15 terabit per square inch, to achieve. According to the manufacturer, is leading the milestone within ten years, to 3.5″discs with a capacity of 60 terabytes.
Seagate knew the density of 1 terabit per square inch, to achieve by making use of heat-assisted magnetic recording, or hamr. In 2002 predicted Seagate this technology to a density of 50 terabit per square inch would lead. The maximumopslagdichtheid of the commercially available 3,5″-disks is currently at 620 gigabits per square inch. For the smaller 2,5″-disks is the limit to 500Gb/inch2.
According to Seagate delivers the first generation of hamr drives, doubling the capacity from 3 to 6TB of what the 3.5″drives and 1 to 2TB in 2.5″drives. Within ten years the density of 5 to 10Tb/inch2 is achieved, which allows 30 to 60tb capacity drives can be realized.
With Hamr is the surface where the bits should be stored heated with a laser. The medium is therefore easier to describe, and the data remains stable after the cooling of the surface. The technology solves partly the problem is that bits become unstable as they become smaller.