DiskGradeMost reliable 8 TB hard drives
8 models ranked by annualised failure rate, Q1 2023 to Q3 2026. Across all 8 TB drives the rate is 2.56% a year, against 1.52% for every drive in the data. Most reliable: Seagate ST8000NM000A at 0.37%.
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HGSTSeagateToshibaWestern Digital
| Grade | Model | Type | Size | Failure rate / year | Drives in use | Drive-years | Failures |
|---|---|---|---|---|---|---|---|
| A | Seagate ST8000NM000A | HDD | 8 TB | 0.37% | 229 | 806 | 3 |
| D | Seagate ST8000DM002 | HDD | 8 TB | 2.15% | 5,927 | 32,297 | 694 |
| D | HGST HUH728080ALE600 | HDD | 8 TB | 2.39% | 101 | 3,554 | 85 |
| D | Seagate ST8000NM0055 | HDD | 8 TB | 2.85% | 12,700 | 50,867 | 1,449 |
| F | HGST HUH728080ALE604 | HDD | 8 TB | 5.53% | 68 | 308 | 17 |
| – | Toshiba HDWF180 | HDD | 8 TB | 4.95% | 47 | 202 | 10 |
| – | Seagate ST8000DM005 | HDD | 8 TB | 1.16% | 15 | 86 | 1 |
| – | HGST HUS728T8TALE6L4 | HDD | 8 TB | 1.39% | 18 | 72 | 1 |