Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q2 2021
59 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| Hitachi | HDS5C4040ALE630 | 4 TB | 32 | 2,893 | 0 | 0.00% |
| Toshiba | MG08ACA16TA | 16 TB | 39 | 3,549 | 0 | 0.00% |
| HGST | HUH721212ALE600 | 12 TB | 2,600 | 234,416 | 0 | 0.00% |
| Seagate | Seagate SSD | 250 GB | 108 | 9,767 | 0 | 0.00% |
| WD | WUH721816ALE6L0 | 16 TB | 624 | 49,816 | 0 | 0.00% |
| Seagate | ST14000NM0018 | 14 TB | 21 | 1,622 | 0 | 0.00% |
| Seagate | ST8000NM000A | 8 TB | 43 | 3,224 | 0 | 0.00% |
| Seagate | ST8000DM005 | 8 TB | 25 | 2,275 | 0 | 0.00% |
| Seagate | ZA250CM10002 | 250 GB | 561 | 50,895 | 0 | 0.00% |
| HGST | HUH721010ALE600 | 10 TB | 20 | 1,820 | 0 | 0.00% |
| Seagate | ST18000NM000J | 18 TB | 60 | 5,460 | 0 | 0.00% |
| Seagate | ST16000NM005G | 16 TB | 26 | 2,340 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 10 | 896 | 0 | 0.00% |
| Seagate | ST500LM021 | 500 GB | 33 | 2,997 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 52 | 4,732 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 91 | 0 | 0.00% |
| Seagate | ZA500CM10002 | 500 GB | 18 | 1,627 | 0 | 0.00% |
| Seagate | ST12000NM0117 | 12 TB | 10 | 905 | 0 | 0.00% |
| Dell | DELLBOSS VD | 480 GB | 166 | 13,576 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 1 | 33 | 0 | 0.00% |
| WD | WD60EFRX | 6 TB | 3 | 273 | 0 | 0.00% |
| Seagate | ST6000DX000 | 6 TB | 886 | 80,626 | 0 | 0.00% |
| Seagate | ST6000DM001 | 6 TB | 4 | 364 | 0 | 0.00% |
| HGST | HUS726040ALE610 | 4 TB | 28 | 2,548 | 0 | 0.00% |
| Toshiba | HDWE160 | 6 TB | 4 | 364 | 0 | 0.00% |
| Seagate | ST6000DM004 | 6 TB | 1 | 91 | 0 | 0.00% |
| Seagate | ST4000DM005 | 4 TB | 38 | 3,458 | 0 | 0.00% |
| Seagate | ST8000DM004 | 8 TB | 1 | 91 | 0 | 0.00% |
| HGST | HMS5C4040BLE641 | 4 TB | 1 | 91 | 0 | 0.00% |
| HGST | HUH721212ALE604 | 12 TB | 10,757 | 789,373 | 3 | 0.14% |
| Toshiba | MG08ACA16TEY | 16 TB | 1,431 | 103,324 | 1 | 0.35% |
| HGST | HUH728080ALE600 | 8 TB | 1,078 | 98,004 | 1 | 0.37% |
| Seagate | ST12000NM001G | 12 TB | 10,577 | 894,875 | 10 | 0.41% |
| HGST | HMS5C4040BLE640 | 4 TB | 12,750 | 1,158,839 | 14 | 0.44% |
| WD | WUH721414ALE6L4 | 14 TB | 8,410 | 764,302 | 10 | 0.48% |
| HGST | HUH721212ALN604 | 12 TB | 10,848 | 985,447 | 14 | 0.52% |
| HGST | HMS5C4040ALE640 | 4 TB | 3,254 | 291,656 | 5 | 0.63% |
| Toshiba | MG07ACA14TA | 14 TB | 31,974 | 2,740,341 | 55 | 0.73% |
| Seagate | ST12000NM0008 | 12 TB | 20,380 | 1,847,092 | 46 | 0.91% |
| Seagate | ST10000NM0086 | 10 TB | 1,202 | 109,134 | 3 | 1.00% |
| Seagate | ST8000NM0055 | 8 TB | 14,449 | 1,310,887 | 45 | 1.25% |
| Seagate | ST8000DM002 | 8 TB | 9,766 | 885,873 | 33 | 1.36% |
| Seagate | ST14000NM001G | 14 TB | 8,386 | 601,727 | 26 | 1.58% |
| Seagate | ST16000NM001G | 16 TB | 4,874 | 314,266 | 15 | 1.74% |
| Seagate | ZA250CM10003 | 250 GB | 753 | 60,199 | 3 | 1.82% |
| Toshiba | MG07ACA14TEY | 14 TB | 426 | 37,856 | 2 | 1.93% |
| Seagate | ST4000DM000 | 4 TB | 18,886 | 1,714,240 | 91 | 1.94% |
| WD | WD5000LPVX | 500 GB | 198 | 17,984 | 1 | 2.03% |
| Seagate | ST12000NM0007 | 12 TB | 13,531 | 726,571 | 41 | 2.06% |
| Toshiba | MD04ABA400V | 4 TB | 99 | 8,974 | 1 | 4.07% |
| Seagate | ST14000NM0138 | 14 TB | 1,676 | 151,236 | 23 | 5.55% |
| Micron | MTFDDAV240TCB | 240 GB | 96 | 8,700 | 2 | 8.39% |
| Seagate | ST500LM030 | 500 GB | 239 | 21,271 | 5 | 8.58% |
| Seagate | ST500LM012 HN | 500 GB | 445 | 39,838 | 11 | 10.08% |
| Toshiba | HDWF180 | 8 TB | 18 | 1,502 | 1 | 24.30% |
| Toshiba | MQ01ABF050 | 500 GB | 331 | 28,891 | 20 | 25.27% |
| Toshiba | MQ01ABF050M | 500 GB | 372 | 32,730 | 23 | 25.65% |
| Seagate | ZA2000CM10002 | 2 TB | 4 | 355 | 1 | 102.82% |
| Seagate | ST10000NM001G | 10 TB | 3 | 165 | 1 | 221.21% |