2023-11-05 23:00:42
Project Silica is a Microsoft project that fundamentally reexamines storage system construction and technology with the goal of storing more than 100 zettabytes of data in the cloud by 2023. In 2019, they succeeded in preserving the movie Superman on a palm-sized quartz glass plate, but in October 2023, it was announced that this storage capacity had been increased to 7TB, more than 100 times, and the preservation life had been extended from 1,000 to 10,000 years. Hard disks used in cloud services wear out in 3 to 5 years, and magnetic tapes wear out in 5 to 7 years, so they need to be replaced regularly, so maintenance costs are enormous. Therefore, Project Silica creates a nanoscale layer inside solid quartz glass to encode data in the glass. The argument is that glass is resistant to heat and water and is not damaged by magnetism. In addition, difficult entries can be made in an instant, which leads to lower costs. In 2019, as a proof-of-concept experiment for Project Silica, Superman film data, a 75.6 GB file size movie, was preserved on a 75 × 75 × 2 mm palm-sized quartz glass plate. Next, they succeeded in rereading the Superman film data from the glass plate storage. Microsoft announced in October 2023 that it will be able to store several terabytes of data on a new, smaller glass plate. Elire, a startup working with the Microsoft Research Project Silica team, has contributed technology to the Global Music Vault effort to protect the world’s musical heritage. As a result, it is said that they succeeded in preserving 1.75 million songs, equivalent to 13 years of music, on a palm-sized glass plate. A Microsoft engineer working on Project Silica said his technology has a finite lifespan, so it needs to keep copying to new generations of media. Hard disks have a five-year lifespan, and if you have tape, it might take 10 years, but you have to copy it anyway when it expires, and that’s difficult and unsustainable. Point out that it is impossible. Project Silica technology allows data to be used knowing that it is immutable and secure, he said, adding that this is an important step forward in sustainable data storage. Data is stored on glass through a four-step process. First, data is written on a glass plate using an ultra-fast femtosecond laser. The data is then read from the glass plate using a computer-controlled microscope. In step 3, data decode processing is performed. Finally, the glass plate on which the data is stored is stored in the library. Once data is stored on the glass, it can be read but cannot be changed. For reference, a big short-term advantage of glass plate data storage is that glass plate storage can significantly reduce the enormous electricity bills that many data centers consume by focusing on online maintenance and cooling. Glass plates are stable at room temperature and do not require energy. It is pointed out that it can be maintained. Related information can be found here.
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