DiskGradeHGST drive failure rates
10 HGST models, Q1 2023 to Q3 2026. Across all of them the failure rate is 2.53% a year, against 1.52% for every drive in the data. Most reliable: HGST HMS5C4040BLE640 at 0.32%. A brand average hides wide differences between models, so check the model you plan to buy.
4 TB8 TB10 TB12 TB14 TB16 TB24 TB
HGSTSeagateToshibaWestern Digital
| Grade | Model | Type | Size | Failure rate / year | Drives in use | Drive-years | Failures |
|---|---|---|---|---|---|---|---|
| A | HGST HMS5C4040BLE640 | HDD | 4 TB | 0.32% | 0 (retired) | 21,067 | 67 |
| A | HGST HMS5C4040ALE640 | HDD | 4 TB | 0.38% | 0 (retired) | 4,207 | 16 |
| B | HGST HUH721212ALE600 | HDD | 12 TB | 0.90% | 2,590 | 9,719 | 87 |
| D | HGST HUH728080ALE600 | HDD | 8 TB | 2.39% | 101 | 3,554 | 85 |
| D | HGST HUH721212ALE604 | HDD | 12 TB | 2.40% | 12,885 | 49,399 | 1,184 |
| F | HGST HUH721212ALN604 | HDD | 12 TB | 4.60% | 9,328 | 37,997 | 1,747 |
| F | HGST HUH728080ALE604 | HDD | 8 TB | 5.53% | 68 | 308 | 17 |
| – | HGST HUH721010ALE600 | HDD | 10 TB | 0.00% | 20 | 75 | 0 |
| – | HGST HUS728T8TALE6L4 | HDD | 8 TB | 1.39% | 18 | 72 | 1 |
| – | HGST HUS726040ALE610 | HDD | 4 TB | 0.00% | 0 (retired) | 53 | 0 |