Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q1 2017
56 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| WD | WD2500BEVT | 250 GB | 1 | 86 | 0 | 0.00% |
| Seagate | ST9250315AS | 250 GB | 51 | 4,386 | 0 | 0.00% |
| Seagate | ST250LM004 HN | 250 GB | 31 | 2,666 | 0 | 0.00% |
| Seagate | ST9320325AS | 320 GB | 23 | 1,978 | 0 | 0.00% |
| WD | WD3200AAJS | 320 GB | 3 | 258 | 0 | 0.00% |
| Seagate | ST3160316AS | 160 GB | 41 | 3,465 | 0 | 0.00% |
| WD | WD2500BPVT | 250 GB | 8 | 688 | 0 | 0.00% |
| WD | WD5002ABYS | 500 GB | 3 | 258 | 0 | 0.00% |
| WD | WD2500AAJS | 250 GB | 3 | 258 | 0 | 0.00% |
| WD | WD5003ABYX | 500 GB | 2 | 172 | 0 | 0.00% |
| Hitachi | HDT725025VLA380 | 250 GB | 1 | 86 | 0 | 0.00% |
| WD | WD40EFRX | 4 TB | 46 | 3,956 | 0 | 0.00% |
| WD | WD20EFRX | 2 TB | 45 | 405 | 0 | 0.00% |
| WD | WD3200BEKX | 320 GB | 9 | 774 | 0 | 0.00% |
| Seagate | ST3500320AS | 500 GB | 1 | 86 | 0 | 0.00% |
| Toshiba | MD04ABA500V | 5 TB | 45 | 3,870 | 0 | 0.00% |
| Seagate | ST4000DX002 | 4 TB | 3 | 258 | 0 | 0.00% |
| WD | WD1000FYPS | 1 TB | 1 | 11 | 0 | 0.00% |
| Seagate | ST6000DM001 | 6 TB | 6 | 463 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 24 | 2,051 | 0 | 0.00% |
| HGST | HUH728080ALE600 | 8 TB | 45 | 3,870 | 0 | 0.00% |
| Toshiba | MQ01ABF050M | 500 GB | 41 | 443 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 53 | 4,176 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 86 | 0 | 0.00% |
| Seagate | ST31500541AS | 2 TB | 41 | 3,522 | 0 | 0.00% |
| Hitachi | HDS722020ALA330 | 2 TB | 123 | 3,142 | 0 | 0.00% |
| WD | WD10EADS | 1 TB | 75 | 1,096 | 0 | 0.00% |
| Seagate | ST33000651AS | 3 TB | 1 | 86 | 0 | 0.00% |
| WD | WD10EADX | 1 TB | 4 | 59 | 0 | 0.00% |
| Toshiba | DT01ACA300 | 3 TB | 46 | 3,956 | 0 | 0.00% |
| Hitachi | HDS723030BLE640 | 3 TB | 9 | 774 | 0 | 0.00% |
| WD | WD10EARS | 1 TB | 2 | 32 | 0 | 0.00% |
| Hitachi | HDS5C3030BLE630 | 3 TB | 1 | 86 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 43 | 3,698 | 0 | 0.00% |
| Seagate | ST320LT007 | 320 GB | 9 | 774 | 0 | 0.00% |
| WD | WD1600AAJS | 160 GB | 85 | 7,185 | 0 | 0.00% |
| WD | WD3200LPVX | 320 GB | 1 | 86 | 0 | 0.00% |
| WD | WD1600BPVT | 160 GB | 1 | 86 | 0 | 0.00% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 2,713 | 232,760 | 1 | 0.16% |
| HGST | HMS5C4040ALE640 | 4 TB | 8,488 | 644,282 | 6 | 0.34% |
| Seagate | ST500LM012 HN | 500 GB | 787 | 67,345 | 1 | 0.54% |
| Seagate | ST6000DX000 | 6 TB | 1,894 | 162,506 | 3 | 0.67% |
| Hitachi | HDS5C3030ALA630 | 3 TB | 4,479 | 383,788 | 10 | 0.95% |
| Seagate | ST8000DM002 | 8 TB | 9,884 | 815,494 | 23 | 1.03% |
| WD | WD30EFRX | 3 TB | 1,119 | 94,973 | 3 | 1.15% |
| WD | WD5000LPVX | 500 GB | 336 | 28,547 | 1 | 1.28% |
| HGST | HMS5C4040BLE640 | 4 TB | 15,377 | 959,967 | 37 | 1.41% |
| Hitachi | HDS723030ALA640 | 3 TB | 978 | 83,918 | 4 | 1.74% |
| Seagate | ST8000NM0055 | 8 TB | 2,460 | 37,559 | 2 | 1.94% |
| WD | WD60EFRX | 6 TB | 446 | 38,271 | 3 | 2.86% |
| Toshiba | MD04ABA400V | 4 TB | 147 | 12,551 | 1 | 2.91% |
| Seagate | ST4000DM000 | 4 TB | 34,802 | 2,981,251 | 264 | 3.23% |
| Toshiba | MQ01ABF050 | 500 GB | 247 | 12,973 | 4 | 11.25% |
| Seagate | ST3160318AS | 160 GB | 13 | 1,083 | 1 | 33.70% |
| Seagate | ST4000DX000 | 4 TB | 185 | 15,261 | 15 | 35.88% |
| WD | WD10EACS | 1 TB | 18 | 243 | 1 | 150.21% |