Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q4 2018
47 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| HGST | HMS5C4040BLE641 | 4 TB | 1 | 63 | 0 | 0.00% |
| Seagate | ZA500CM10002 | 500 GB | 13 | 490 | 0 | 0.00% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 67 | 5,892 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 1 | 91 | 0 | 0.00% |
| Seagate | ST320LT007 | 320 GB | 2 | 146 | 0 | 0.00% |
| WD | WD1600AAJS | 160 GB | 21 | 1,772 | 0 | 0.00% |
| Seagate | ST3160318AS | 160 GB | 1 | 91 | 0 | 0.00% |
| Seagate | ST9250315AS | 250 GB | 1 | 55 | 0 | 0.00% |
| Seagate | ST250LM004 HN | 250 GB | 1 | 91 | 0 | 0.00% |
| Seagate | ST9320325AS | 320 GB | 6 | 110 | 0 | 0.00% |
| WD | WD3200AAJS | 320 GB | 1 | 91 | 0 | 0.00% |
| Seagate | ST3160316AS | 160 GB | 5 | 308 | 0 | 0.00% |
| WD | WD2500AAJS | 250 GB | 1 | 91 | 0 | 0.00% |
| WD | WD40EFRX | 4 TB | 46 | 1,062 | 0 | 0.00% |
| WD | WD3200BEKX | 320 GB | 1 | 91 | 0 | 0.00% |
| Toshiba | MD04ABA500V | 5 TB | 45 | 4,095 | 0 | 0.00% |
| Seagate | ST6000DM001 | 6 TB | 13 | 1,187 | 0 | 0.00% |
| HGST | HUS726040ALE610 | 4 TB | 30 | 2,201 | 0 | 0.00% |
| Toshiba | HDWE160 | 6 TB | 10 | 914 | 0 | 0.00% |
| Seagate | ST6000DM004 | 6 TB | 2 | 183 | 0 | 0.00% |
| Seagate | ST4000DM005 | 4 TB | 63 | 5,447 | 0 | 0.00% |
| HGST | HUH721010ALE600 | 10 TB | 10 | 538 | 0 | 0.00% |
| HGST | HUH728080ALE600 | 8 TB | 1,045 | 95,095 | 0 | 0.00% |
| Toshiba | HDWF180 | 8 TB | 20 | 1,820 | 0 | 0.00% |
| Seagate | ZA2000CM10002 | 2 TB | 1 | 10 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 56 | 5,111 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 91 | 0 | 0.00% |
| Seagate | ST10000NM0086 | 10 TB | 1,226 | 110,482 | 1 | 0.33% |
| HGST | HMS5C4040BLE640 | 4 TB | 14,667 | 1,335,577 | 18 | 0.49% |
| HGST | HMS5C4040ALE640 | 4 TB | 4,843 | 426,449 | 6 | 0.51% |
| HGST | HUH721212ALN604 | 12 TB | 1,279 | 64,759 | 1 | 0.56% |
| Seagate | ST8000DM002 | 8 TB | 9,898 | 901,613 | 24 | 0.97% |
| Seagate | ST6000DX000 | 6 TB | 1,528 | 139,492 | 4 | 1.05% |
| WD | WD60EFRX | 6 TB | 383 | 34,843 | 1 | 1.05% |
| Seagate | ST8000NM0055 | 8 TB | 14,423 | 1,312,180 | 39 | 1.08% |
| Toshiba | MQ01ABF050M | 500 GB | 355 | 31,203 | 1 | 1.17% |
| Seagate | ST12000NM0007 | 12 TB | 31,274 | 2,460,704 | 130 | 1.93% |
| Seagate | ST4000DM000 | 4 TB | 24,395 | 2,156,756 | 120 | 2.03% |
| Toshiba | MG07ACA14TA | 14 TB | 1,227 | 106,177 | 6 | 2.06% |
| Toshiba | MD04ABA400V | 4 TB | 146 | 13,188 | 1 | 2.77% |
| WD | WD5000LPVX | 500 GB | 283 | 24,665 | 3 | 4.44% |
| Seagate | ST500LM012 HN | 500 GB | 626 | 54,777 | 12 | 8.00% |
| Toshiba | MQ01ABF050 | 500 GB | 540 | 48,732 | 12 | 8.99% |
| Seagate | ST8000DM005 | 8 TB | 26 | 2,092 | 1 | 17.45% |
| WD | WD5000BPKT | 500 GB | 12 | 911 | 1 | 40.07% |
| Seagate | ST500LM030 | 500 GB | 118 | 5,423 | 7 | 47.11% |
| Seagate | ST8000DM004 | 8 TB | 5 | 450 | 1 | 81.11% |