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Seagate IronWolf ZA250NM10002 250 GB failure rate and reliability

A Grade A: Excellent

Backblaze logged 510 drive-years on the Seagate IronWolf ZA250NM10002 from Q1 2023 to Q3 2026, with 201 in service at the end of that period. In that time 0 drives failed, an annualised failure rate of 0.00%.

That is 100% lower than the 1.52% average across every drive in the same data, which earns it grade A (excellent).

Among the 7 graded 250 GB SSDs it ranks 1 of 7 for reliability.

Failure rate / year

0.00%

Average, all drives

1.52%

Drives in use

201

Drive-years

510

Failures

0

Capacity

250 GB

Type

SSD

Model number

IronWolf ZA250NM10002

Failure rate by quarter

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

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