Microscoft’s glass storage method can store 4.8 terabytes of data.Credit: Microsoft Research
Researchers at Microsoft have created a data-storage system that can remain readable for at least 10,000 years — and probably much longer.
In the digital age, the need for data storage is ballooning. But current magnetic tapes and hard drives are ill-suited for long-term data storage because they degrade in about ten years. This “impressive” glass-based alternative could “in principle, act as near-permanent archival storage for backup of critical data,” says Mark Bathe, a biological engineer at the Massachusetts Institute of Technology in Cambridge.
The Microsoft team used a high-energy laser to imprint deformations into a 3D chunk of borosilicate glass, the kind used in ovenware. Each deformation encodes data that can be read out using a microscope.
A 12-centimetre wide, 2-millimetre-thick square of the glass can store 4.8 terabytes of data, the equivalent of around 2 million printed books, the authors demonstrate in their paper published in Nature on 18 February1.
Writing and reading the data is considerably more convoluted than opening a file on a hard drive, but the information is much more secure. Tests suggest that the data would survive for 10,000 years at a temperature of 290 ºC and potentially for tens or hundreds of times longer at room temperature, says Richard Black, a computer scientist who led the initiative known as Project Silica at Microsoft Research in Cambridge, UK.
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Although the glass method requires specialist hardware to write and read data, the paper demonstrates that glass storage has gone beyond a materials experiment and is now a “deployable archival system”, says Long Qian, a computational synthetic biologist at Peking University in Beijing.
“By showing a complete system … they have shown how this technology can truly revolutionize the data-centre industry,” says Peter Kazansky, a researcher in optoelectronics at the University of Southampton, UK, and a previous collaborator with Microsoft on glass storage.
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