Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q4 2017
49 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| Seagate | ST31500541AS | 2 TB | 40 | 3,446 | 0 | 0.00% |
| WD | WD1600AAJS | 160 GB | 48 | 4,028 | 0 | 0.00% |
| Seagate | ST3160318AS | 160 GB | 7 | 452 | 0 | 0.00% |
| WD | WD3200LPVX | 320 GB | 1 | 91 | 0 | 0.00% |
| WD | WD1600BPVT | 160 GB | 1 | 92 | 0 | 0.00% |
| Seagate | ST9320325AS | 320 GB | 21 | 1,866 | 0 | 0.00% |
| WD | WD3200AAJS | 320 GB | 2 | 182 | 0 | 0.00% |
| Seagate | ST3160316AS | 160 GB | 14 | 1,052 | 0 | 0.00% |
| WD | WD2500BPVT | 250 GB | 7 | 617 | 0 | 0.00% |
| WD | WD5002ABYS | 500 GB | 1 | 83 | 0 | 0.00% |
| WD | WD2500AAJS | 250 GB | 3 | 274 | 0 | 0.00% |
| WD | WD3200AAKS | 320 GB | 1 | 91 | 0 | 0.00% |
| WD | WD3200BEKX | 320 GB | 4 | 313 | 0 | 0.00% |
| Toshiba | MD04ABA500V | 5 TB | 45 | 4,095 | 0 | 0.00% |
| Toshiba | MD04ABA400V | 4 TB | 146 | 13,241 | 0 | 0.00% |
| Seagate | ST4000DX002 | 4 TB | 7 | 515 | 0 | 0.00% |
| Seagate | ST6000DM001 | 6 TB | 15 | 1,349 | 0 | 0.00% |
| HGST | HUS726040ALE610 | 4 TB | 31 | 2,740 | 0 | 0.00% |
| Toshiba | HDWE160 | 6 TB | 1 | 64 | 0 | 0.00% |
| Seagate | ST6000DM004 | 6 TB | 2 | 74 | 0 | 0.00% |
| Seagate | ST8000DM005 | 8 TB | 5 | 191 | 0 | 0.00% |
| WD | WD5000LPVX | 500 GB | 319 | 28,554 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 22 | 1,983 | 0 | 0.00% |
| HGST | HUH728080ALE600 | 8 TB | 70 | 4,420 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 56 | 5,110 | 0 | 0.00% |
| Hitachi | HDS722020ALA330 | 2 TB | 65 | 1,132 | 0 | 0.00% |
| WD | WD30EFRX | 3 TB | 180 | 16,380 | 0 | 0.00% |
| Seagate | ST33000651AS | 3 TB | 1 | 88 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 3 | 257 | 0 | 0.00% |
| Seagate | ST320LT007 | 320 GB | 9 | 824 | 0 | 0.00% |
| HGST | HMS5C4040ALE640 | 4 TB | 6,846 | 587,667 | 3 | 0.19% |
| Seagate | ST6000DX000 | 6 TB | 1,882 | 172,266 | 1 | 0.21% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 2,514 | 227,708 | 2 | 0.32% |
| HGST | HMS5C4040BLE640 | 4 TB | 15,059 | 1,369,721 | 17 | 0.45% |
| Seagate | ST10000NM0086 | 10 TB | 1,223 | 110,957 | 3 | 0.99% |
| Seagate | ST8000DM002 | 8 TB | 9,915 | 901,785 | 28 | 1.13% |
| Seagate | ST8000NM0055 | 8 TB | 14,464 | 1,313,506 | 44 | 1.22% |
| Seagate | ST12000NM0007 | 12 TB | 7,242 | 308,864 | 17 | 2.01% |
| Toshiba | MQ01ABF050M | 500 GB | 150 | 13,199 | 1 | 2.77% |
| Seagate | ST4000DM000 | 4 TB | 33,341 | 2,969,705 | 233 | 2.86% |
| WD | WD60EFRX | 6 TB | 441 | 39,856 | 4 | 3.66% |
| Toshiba | MQ01ABF050 | 500 GB | 439 | 34,568 | 4 | 4.22% |
| Seagate | ST500LM012 HN | 500 GB | 718 | 63,894 | 8 | 4.57% |
| Seagate | ST9250315AS | 250 GB | 47 | 4,213 | 1 | 8.66% |
| WD | WD40EFRX | 4 TB | 46 | 4,113 | 1 | 8.87% |
| Seagate | ST4000DM001 | 4 TB | 401 | 36,506 | 9 | 9.00% |
| Seagate | ST4000DX000 | 4 TB | 145 | 10,566 | 4 | 13.82% |
| Seagate | ST250LM004 HN | 250 GB | 25 | 2,260 | 1 | 16.15% |
| Seagate | ST4000DM005 | 4 TB | 61 | 1,255 | 1 | 29.08% |