Chapter 9 Reference 20
Data Durability Calculation
Open the original at backblaze.comAs cited in the book
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Cloud Storage Durability: What Do All Those 9s Mean?
We’ve calculated Backblaze’s storage durability at 99.999999999%. What does that impressively large number mean, and does it actually matter for your data?
From the page's own metadata at backblaze.com, 2026-08-30.
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