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Seagate ST16000NM002J 16 TB failure rate and reliability

A Grade A: Excellent

Backblaze logged 1,607 drive-years on the Seagate ST16000NM002J from Q1 2023 to Q3 2026, with 463 in service at the end of that period. In that time 9 drives failed, an annualised failure rate of 0.56%.

That is 63% lower than the 1.52% average across every drive in the same data, which earns it grade A (excellent).

Among the 8 graded 16 TB hard drives it ranks 1 of 8 for reliability.

The rate has been steady: 0.65% over the latest 8 quarters against 0.44% before.

Failure rate / year

0.56%

Average, all drives

1.52%

Drives in use

463

Drive-years

1,607

Failures

9

Capacity

16 TB

Type

HDD

Model number

ST16000NM002J

Failure rate by quarter

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

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