DiskGradeSeagate drive failure rates
33 Seagate models, Q1 2023 to Q3 2026. Across all of them the failure rate is 1.93% a year, against 1.52% for every drive in the data. Most reliable: Seagate IronWolf ZA250NM10002 at 0.00%. 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 | Seagate IronWolf ZA250NM10002 | SSD | 250 GB | 0.00% | 201 | 510 | 0 |
| A | Seagate BarraCuda 120 SSD ZA250CM10003 | SSD | 250 GB | 0.20% | 1,072 | 4,095 | 8 |
| A | Seagate ST8000NM000A | HDD | 8 TB | 0.37% | 229 | 806 | 3 |
| A | Seagate ST6000DX000 | HDD | 6 TB | 0.52% | 0 (retired) | 1,147 | 6 |
| A | Seagate ST16000NM002J | HDD | 16 TB | 0.56% | 463 | 1,607 | 9 |
| B | Seagate ST16000NM001G | HDD | 16 TB | 0.62% | 35,594 | 117,216 | 725 |
| B | Seagate BarraCuda SSD ZA250CM10002 | SSD | 250 GB | 0.74% | 458 | 1,889 | 14 |
| 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 |
| C | Seagate SSD | SSD | 250 GB | 1.33% | 97 | 377 | 5 |
| C | Seagate ST14000NM001G | HDD | 14 TB | 1.51% | 10,413 | 39,759 | 600 |
| C | Seagate ST14000NM000J | HDD | 14 TB | 1.56% | 497 | 835 | 13 |
| D | Seagate ST8000DM002 | HDD | 8 TB | 2.15% | 5,927 | 32,297 | 694 |
| D | Seagate ST12000NM0008 | HDD | 12 TB | 2.78% | 17,915 | 71,422 | 1,986 |
| D | Seagate ST8000NM0055 | HDD | 8 TB | 2.85% | 12,700 | 50,867 | 1,449 |
| D | Seagate ST24000NM002H | HDD | 24 TB | 3.36% | 9,433 | 12,353 | 415 |
| D | Seagate ST4000DM000 | HDD | 4 TB | 3.46% | 0 (retired) | 20,249 | 701 |
| F | Seagate ST500LM030 | HDD | 500 GB | 5.05% | 144 | 673 | 34 |
| F | Seagate ST500LM012 HN | HDD | 500 GB | 5.40% | 50 | 648 | 35 |
| F | Seagate ST10000NM0086 | HDD | 10 TB | 5.80% | 934 | 3,914 | 227 |
| F | Seagate ST14000NM0138 | HDD | 14 TB | 6.22% | 1,159 | 5,003 | 311 |
| F | Seagate ST12000NM0007 | HDD | 12 TB | 7.88% | 931 | 4,021 | 317 |
| – | Seagate ST16000NM000J | HDD | 16 TB | 2.23% | 171 | 269 | 6 |
| – | Seagate ST14000NM0018 | HDD | 14 TB | 6.92% | 59 | 231 | 16 |
| – | Seagate ST18000NM000J | HDD | 18 TB | 2.19% | 68 | 229 | 5 |
| – | Seagate ST10000NM001G | HDD | 10 TB | 0.00% | 28 | 105 | 0 |
| – | Seagate ST500LM021 | HDD | 500 GB | 1.93% | 21 | 104 | 2 |
| – | Seagate ST16000NM005G | HDD | 16 TB | 0.00% | 25 | 94 | 0 |
| – | Seagate ST8000DM005 | HDD | 8 TB | 1.16% | 15 | 86 | 1 |
| – | Seagate BarraCuda SSD ZA500CM10002 | SSD | 500 GB | 0.00% | 10 | 50 | 0 |
| – | Seagate ST12000NM003G | HDD | 12 TB | 0.00% | 27 | 47 | 0 |
| – | Seagate ST4000DM005 | HDD | 4 TB | 5.27% | 0 (retired) | 38 | 2 |
| – | Seagate ST14000NM002J | HDD | 14 TB | 3.37% | 24 | 30 | 1 |