DiskGradeMost reliable 12 TB hard drives
8 models ranked by annualised failure rate, Q1 2023 to Q3 2026. Across all 12 TB drives the rate is 2.63% a year, against 1.52% for every drive in the data. Most reliable: HGST HUH721212ALE600 at 0.90%.
4 TB8 TB10 TB12 TB14 TB16 TB24 TB
HGSTSeagateToshibaWestern Digital
| Grade | Model | Type | Size | Failure rate / year | Drives in use | Drive-years | Failures |
|---|---|---|---|---|---|---|---|
| B | HGST HUH721212ALE600 | HDD | 12 TB | 0.90% | 2,590 | 9,719 | 87 |
| B | Seagate ST12000NM000J | HDD | 12 TB | 0.97% | 1,067 | 2,271 | 22 |
| B | Seagate ST12000NM001G | HDD | 12 TB | 1.13% | 13,006 | 49,098 | 553 |
| D | HGST HUH721212ALE604 | HDD | 12 TB | 2.40% | 12,885 | 49,399 | 1,184 |
| D | Seagate ST12000NM0008 | HDD | 12 TB | 2.78% | 17,915 | 71,422 | 1,986 |
| F | HGST HUH721212ALN604 | HDD | 12 TB | 4.60% | 9,328 | 37,997 | 1,747 |
| F | Seagate ST12000NM0007 | HDD | 12 TB | 7.88% | 931 | 4,021 | 317 |
| – | Seagate ST12000NM003G | HDD | 12 TB | 0.00% | 27 | 47 | 0 |