Sony Corporation announced that it has developed, in collaboration with IBM Research, located in Zurich, Switzerland, a magnetic tape storage technology with the industry’s highest recording areal density for tape storage media, at 201 Gb/in2 (gigabits per square inch).
This achievement was made possible by bringing together Sony’s new magnetic tape technology employing lubricant with IBM Research – Zurich’s newly developed write/read heads, advanced servo control technologies and innovative signal-processing algorithms.
The recording areal density of 201 Gb/in2is approximately 20x greater than conventional magnetic tape storage media (9.6 Gb/in2). The resulting technology can support high-capacity storage of approximately 330 terabytes (TB) per data cartridge, whereas conventional technology can only handle 15 TB per data cartridge.
These development results were jointly announced with IBM Research – Zurich on Wednesday, August 2, 2017 at The 28th Magnetic Recording Conference (TMRC 2017) at the Tsukuba International Conference Center in Tsukuba, Japan.
In recent years, developments in the Internet of Things, the popularization of cloud services, and the leveraging of big data have helped to create new markets, resulting in increased demand for high-capacity data storage media.
The magnetic tape shows great potential as a storage media thanks to its various strengths, including its capacity for storing data over long periods of time, low power consumption, low cost, and space saving capabilities.
Closing the gap (spacing) between the magnetic tape and magnetic head is critical to achieving high-density recording capabilities for tape storage media.
Reduced spacing entails increased friction at contact points between the tape surface and magnetic head, however, friction must be reduced and the tape surface must smoothly run along the magnetic head to enable high-capacity writing and reading at a high speed.
This low-friction lubricant not only reduces friction between the tape surface and magnetic head but also features a highly durable bond between the lubricant and magnetic layer of the tape.
Sony will build on this new development to forge ahead with development of magnetic tape technologies, aiming to commercialise next-generation tape storage media capable of high-capacity data recording and achieve even higher recording density.
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