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Backblaze drive stats for Q2 2026

307 points · 113 comments · HieronymusBosch

  1. realityfactchex · · focus · HN ↗
    In 2013 Backblaze saw ~14% avg failure rate at 3 years 3 months. Drive useful life: 4 years, roughly.

    In 2021, Backblaze saw ~14% failure rate at 7 years 9 months. Drive useful life: about 6 years.

    That gave us what was a stable-seeming, old "replace drives at 5 years, or you're getting risky" rule of thumb (unless you prefer to replace on failure, of course).

    In 2025, Backblaze saw ~5% failure rate at 10 years 3 months. Drive useful life: ~10 years, roughly!

    Thanks for all the HDD improvements, industry!

    1. nalekberov · · focus · HN ↗
      Meanwhile my 2.5" HDDs are still alive after more than 10 years. Sure they are not actively used, but still remarkable.
      1. Sohcahtoa82 · · focus · HN ↗
        I had one for 12 years before I finally replaced it.

        And not because it failed, but because I was doing a system overhaul and replaced all my storage with M.2 NVMe drives.

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