Hardware1 hOctober 6, 2026, 18:00

Backblaze: enterprise HDD failure rates vary by 11x across models

Backblaze's Drive Stats report covering 354,415 drives shows lifetime failure rates for enterprise HDDs ranging from 0.5% to 5.88%, with a fleet-wide AFR of 1.41%. The drive model predicts reliability far better than the "enterprise" label: Seagate's 14TB ST14000NM0138 fails nearly 11 times as often as WD's 14TB WUH721414ALE6L4 at 0.54%.

XDA Developers

Open source

Backblaze: enterprise HDD failure rates vary by 11x across models

Fleet-wide annualized failure rate is 1.41% across 354,415 drives
Toshiba 24TB MG11ACA24TE at 0.5% vs Seagate 14TB ST14000NM0138 at 5.88%
WD 14TB WUH721414ALE6L4: 0.54% AFR at an average age of 63.5 months
Consumer Seagate 8TB ST8000DM002 (1.54%) beat enterprise ST8000NM0055 (1.98%)

#Backblaze#Seagate#Toshiba#WD

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