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The capacity of hard drives will dramatically increase

01.04.2012

Seagate was able to increase the data density in the hard drive by 55% - up to 1 Tbps per square inch. It is expected that the new technology within the next 10 years will make it possible to create hard drives with a capacity of up to 60 TB. Seagate Technology, the world's largest magnetic storage maker, has announced that it has achieved a data density of 1 Tbit (1 trillion bits) per square inch of hard drive platter. Seagate claims to be the first in the market to reach this milestone and reports that the 1 trillion bits that the company's new technology can record per 1 square inch is significantly more than the stars in our galaxy, the number of which ranges from 200 to 400 billion .

It was possible to increase the density of data recording due to the transition to a new generation technology called thermally assisted magnetic recording (HAMR), Seagate said. This technology opens up new perspectives in the traditional hard drive market. The company claims that on its basis over the next 10 years it will be possible to create hard drives with a capacity of up to 60 TB. The current-generation technology used in today's hard drives, called Perpendicular Magnetic Recording (PMR), will reach the 1TB per square inch limit within the next few years, after which it will no longer be developed, Seagate stressed.

PMR technology, in turn, has replaced the longitudinal recording technology that has been used since the inception of the personal magnetic storage market in 1956. Today, PRM offers a recording density of 620 Gbps per square inch. Thus, already now HAMR technology offers a 55% increase in density. The company said that the new technology solves the problem of data distortion, which occurs in current generation technology due to the fact that the cell size becomes too small.

The capacity of modern hard drives with a recording density of 620 Gb per square inch is 3 TB in the case of a 3,5-inch form factor and 750 GB in the case of a 2,5-inch one. HAMR technology already at the initial stage will make it possible to create hard drives with a capacity of 6 and 2 TB, respectively. The maximum theoretical density when using HAMR is 5-20 Tbps per square inch. This is equivalent to a 3,5-30TB 60" HDD and a 2,5-10TB 20" HDD.

"The development of social networks, search technologies, cloud computing, the growth of multimedia content and other areas force us to look for new ways to increase capacity," commented Mark Re, Seagate's senior vice president of engineering. "Innovations such as HAMR, will play a key role in the further development of the information industry."

Note that the magnetic storage market is going through hard times. It was hit by floods in Thailand last year, which led to a shortage of hard drives and reduced shipments of personal computers to the global market. In addition, manufacturers are under increasing competitive pressure from flash memory. In August 2011, major vendors formed an alliance to shape the future of the hard drive industry.

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