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Western Digital WUH721414ALE6L4 14 TB failure rate and reliability

B Grade B: Good

Backblaze logged 31,964 drive-years on the Western Digital WUH721414ALE6L4 from Q1 2023 to Q3 2026, with 8,522 in service at the end of that period. In that time 226 drives failed, an annualised failure rate of 0.71%.

That is 53% lower than the 1.52% average across every drive in the same data, which earns it grade B (good).

Among the 6 graded 14 TB hard drives it ranks 1 of 6 for reliability.

The rate has been steady: 0.79% over the latest 8 quarters against 0.62% before.

Failure rate / year

0.71%

Average, all drives

1.52%

Drives in use

8,522

Drive-years

31,964

Failures

226

Capacity

14 TB

Type

HDD

Model number

WUH721414ALE6L4

Failure rate by quarter

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

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