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Seagate ST8000DM005 8 TB failure rate and reliability

– Not graded: too little data

Backblaze logged 86 drive-years on the Seagate ST8000DM005 from Q1 2023 to Q3 2026, with 15 in service at the end of that period. In that time 1 drive failed, an annualised failure rate of 1.16%.

That is too little running time to grade: we require 100,000 drive-days, and this model has 31,442. Treat the rate as a rough indication only.

Failure rate / year

1.16%

Average, all drives

1.52%

Drives in use

15

Drive-years

86

Failures

1

Capacity

8 TB

Type

HDD

Model number

ST8000DM005

Failure rate by quarter

Single quarters with few drive-days swing widely; the overall figure above is the dependable one.

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