When thinking about storage technology in 2020, one rarely thinks about tape media. However, magnetic tape media is critical to archiving data. As data demands continually increase, Fujifilm is working on a new technology that will be a massive breakthrough in linear tape-based storage, offering up to 400TB of storage in a single drive.
As PetaPixel notes, tape-based storage technology is primarily Linear Tape-Open (LTO). Currently, LTO is in its eighth generation, LTO-8, and has a maximum capacity of 12TB, far below the maximum capacity Fujifilm is developing. LTO-9, slated to arrive later this year, maxes out at `only` 24TB. A 12TB (native) Fujifilm Ultrium LTO-8 drive is shown in the leading image of this article.
The driving force behind this potential leap in magnetic tape storage capacity to 400TB is due to a new coating on the tape. LTO-8, and upcoming LTO-9 drives, feature tape coated with Barium Ferrite (BaFe). Down the line, Fujifilm is intending to use Strontium Ferrite (SrFe) instead, due to its superior magnetic qualities. In a 2018 document on LTO, Fujifilm states `…the majority of the magnetic properties of SrFe are superior to those of BaFe, which will enable us to reach a higher level of performance whilst further reducing the size of the particles.` With respect to reducing the size of particles, this is no easy feat. Fujifilm continues, `…it is extremely important to carry out a very precise control of the nucleation of the particles.`
In this image from a Fujifilm document about LTO development, you can see a comparison of particle sizes over time. On the left is an LTO-7 tape, using Barium Ferrite coating. In the middle, a tech demo from 2015 shows smaller particles using an improved BaFe coating. Finally, on the right, you can see the difference in particle sizes using Strontium Ferrite. Click on the image for a better view. Image credit: Fujifilm, 2018
In the same document, Fujifilm states that it be ...
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