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A decade after tapes replaced hard drives to store 100 petabytes of files, both costs and carbon emissions have plummeted

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Carbon peak and carbon neutrality have become important indicators to promote green and ecological development worldwide. Experts and scholars have also put forward their own views in some sub-areas. In a presentation at Fujifilm's 12th Global IT Summit in San Diego late last month, consultant Brad Johns said he expects large IT companies to use a 6:4 ratio for data storage, with six representing tape and four representing traditional hard drives.
Substantial TCO savings from migrating cold data to tape

According to the report, if you store 100PB of data for 10 years, using all 18TB of Seagate Exos hard drive, about 2,663 tons of carbon dioxide emissions. If you switch to 6:4, you can reduce carbon emissions by 58%, and if you use all tape storage (Fujifilm LT0-9 tape, 18TB), you can reduce carbon emissions by 97%.

In terms of the total cost, the tape also has an advantage, with the total cost of full disk storage estimated at $17.07 million. 6:4 can reduce the total cost by 46%, and full tape storage can reduce the total cost by 78%.

Johns estimates that moving 60 percent of the data to tape could save 72 million tons of co2-equivalent emissions.

Moving cold data from HDDs to tape media


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