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Tom’s Hardware
Tom’s Hardware
Technology
Jowi Morales

Cloud storage company releases its 2025 hard drive reliability report — overall Annualized Failure Rate drops to 1.36%, 21 percentage points lower than last year

Backblaze Toshiba Seagate
Western Digital.

Backblaze just released its annual drive reliability report, with the company calculating an overall annualized failure rate (AFR) of 1.36% for 2025. According to the company page, its drives ran for a total of 115,638,676 cumulative days, with 4,317 units failing. This data comes from a total of 344,196 drives, meaning it has a good sample size that can give us a relatively accurate view of the reliability of the drives that it uses. The 1.36% AFR is the company’s best result since 2022, improving on 2025’s 1.57% AFR and the 1.70% AFR from the year before that.

(Image credit: Backblaze)
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