Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q3 2017
50 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| Hitachi | HDS5C3030ALA630 | 3 TB | 1,735 | 63,931 | 0 | 0.00% |
| Seagate | ST3160316AS | 160 GB | 19 | 1,596 | 0 | 0.00% |
| WD | WD2500BPVT | 250 GB | 7 | 644 | 0 | 0.00% |
| WD | WD5002ABYS | 500 GB | 2 | 117 | 0 | 0.00% |
| WD | WD2500AAJS | 250 GB | 3 | 276 | 0 | 0.00% |
| WD | WD5003ABYX | 500 GB | 1 | 17 | 0 | 0.00% |
| WD | WD3200AAKS | 320 GB | 1 | 92 | 0 | 0.00% |
| WD | WD40EFRX | 4 TB | 46 | 4,232 | 0 | 0.00% |
| WD | WD3200BEKX | 320 GB | 9 | 618 | 0 | 0.00% |
| Toshiba | MD04ABA500V | 5 TB | 45 | 4,140 | 0 | 0.00% |
| Toshiba | MD04ABA400V | 4 TB | 146 | 13,427 | 0 | 0.00% |
| Seagate | ST4000DX002 | 4 TB | 3 | 276 | 0 | 0.00% |
| Seagate | ST6000DM001 | 6 TB | 12 | 1,007 | 0 | 0.00% |
| HGST | HUS726040ALE610 | 4 TB | 30 | 1,644 | 0 | 0.00% |
| Seagate | ST12000NM0007 | 12 TB | 20 | 500 | 0 | 0.00% |
| Seagate | ST10000NM0086 | 10 TB | 1,220 | 12,500 | 0 | 0.00% |
| WD | WD5000LPVX | 500 GB | 333 | 29,408 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 22 | 1,967 | 0 | 0.00% |
| HGST | HUH728080ALE600 | 8 TB | 45 | 4,140 | 0 | 0.00% |
| Toshiba | MQ01ABF050M | 500 GB | 140 | 10,572 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 56 | 5,151 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 91 | 0 | 0.00% |
| Seagate | ST31500541AS | 2 TB | 41 | 3,691 | 0 | 0.00% |
| Hitachi | HDS722020ALA330 | 2 TB | 3 | 276 | 0 | 0.00% |
| Seagate | ST33000651AS | 3 TB | 1 | 92 | 0 | 0.00% |
| Toshiba | DT01ACA300 | 3 TB | 40 | 1,897 | 0 | 0.00% |
| Hitachi | HDS723030BLE640 | 3 TB | 7 | 319 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 43 | 3,249 | 0 | 0.00% |
| Seagate | ST320LT007 | 320 GB | 9 | 828 | 0 | 0.00% |
| WD | WD1600AAJS | 160 GB | 60 | 5,062 | 0 | 0.00% |
| Seagate | ST3160318AS | 160 GB | 10 | 874 | 0 | 0.00% |
| WD | WD3200LPVX | 320 GB | 1 | 92 | 0 | 0.00% |
| WD | WD1600BPVT | 160 GB | 1 | 92 | 0 | 0.00% |
| Seagate | ST9250315AS | 250 GB | 51 | 4,443 | 0 | 0.00% |
| Seagate | ST250LM004 HN | 250 GB | 26 | 2,388 | 0 | 0.00% |
| Seagate | ST9320325AS | 320 GB | 22 | 1,949 | 0 | 0.00% |
| WD | WD3200AAJS | 320 GB | 3 | 265 | 0 | 0.00% |
| HGST | HMS5C4040BLE640 | 4 TB | 16,191 | 1,419,590 | 14 | 0.36% |
| Seagate | ST6000DX000 | 6 TB | 1,885 | 173,261 | 2 | 0.42% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 2,737 | 249,536 | 3 | 0.44% |
| HGST | HMS5C4040ALE640 | 4 TB | 8,572 | 720,083 | 9 | 0.46% |
| Seagate | ST500LM012 HN | 500 GB | 785 | 68,678 | 1 | 0.53% |
| Seagate | ST8000DM002 | 8 TB | 9,897 | 908,298 | 18 | 0.72% |
| Seagate | ST8000NM0055 | 8 TB | 14,433 | 982,738 | 28 | 1.04% |
| WD | WD30EFRX | 3 TB | 514 | 29,927 | 1 | 1.22% |
| Toshiba | MQ01ABF050 | 500 GB | 344 | 26,816 | 1 | 1.36% |
| WD | WD60EFRX | 6 TB | 443 | 40,642 | 2 | 1.80% |
| Seagate | ST4000DM000 | 4 TB | 34,597 | 3,152,542 | 282 | 3.27% |
| Seagate | ST4000DM001 | 4 TB | 419 | 36,783 | 19 | 18.85% |
| Seagate | ST4000DX000 | 4 TB | 157 | 14,083 | 12 | 31.10% |