Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q2 2019
41 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| Seagate | ST8000DM005 | 8 TB | 25 | 2,275 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 54 | 4,914 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 91 | 0 | 0.00% |
| Seagate | ZA500CM10002 | 500 GB | 18 | 1,629 | 0 | 0.00% |
| Dell | DELLBOSS VD | 480 GB | 20 | 1,820 | 0 | 0.00% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 27 | 2,457 | 0 | 0.00% |
| Seagate | ST320LT007 | 320 GB | 1 | 60 | 0 | 0.00% |
| Seagate | ST9250315AS | 250 GB | 1 | 61 | 0 | 0.00% |
| WD | WD60EFRX | 6 TB | 89 | 488 | 0 | 0.00% |
| Toshiba | MD04ABA500V | 5 TB | 45 | 180 | 0 | 0.00% |
| Toshiba | MD04ABA400V | 4 TB | 99 | 9,009 | 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 | 5 | 366 | 0 | 0.00% |
| Seagate | ST6000DM004 | 6 TB | 2 | 93 | 0 | 0.00% |
| Seagate | ST4000DM005 | 4 TB | 44 | 3,629 | 0 | 0.00% |
| Seagate | ST8000DM004 | 8 TB | 3 | 273 | 0 | 0.00% |
| HGST | HMS5C4040BLE641 | 4 TB | 1 | 91 | 0 | 0.00% |
| Seagate | Seagate SSD | 250 GB | 37 | 1,184 | 0 | 0.00% |
| Toshiba | MG07ACA14TA | 14 TB | 1,220 | 111,020 | 0 | 0.00% |
| HGST | HUH721010ALE600 | 10 TB | 20 | 1,798 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 11 | 960 | 0 | 0.00% |
| Seagate | ST500LM021 | 500 GB | 32 | 2,150 | 0 | 0.00% |
| Seagate | ZA2000CM10002 | 2 TB | 3 | 273 | 0 | 0.00% |
| HGST | HUH721212ALN604 | 12 TB | 9,675 | 645,966 | 5 | 0.28% |
| HGST | HMS5C4040BLE640 | 4 TB | 12,770 | 1,160,287 | 15 | 0.47% |
| Seagate | ST10000NM0086 | 10 TB | 1,206 | 109,222 | 2 | 0.67% |
| HGST | HUH721212ALE600 | 12 TB | 521 | 47,320 | 1 | 0.77% |
| HGST | HMS5C4040ALE640 | 4 TB | 2,676 | 235,280 | 5 | 0.78% |
| HGST | HUH728080ALE600 | 8 TB | 1,003 | 90,691 | 2 | 0.81% |
| Seagate | ST8000DM002 | 8 TB | 9,900 | 898,837 | 23 | 0.93% |
| Seagate | ST6000DX000 | 6 TB | 1,028 | 81,039 | 3 | 1.35% |
| Seagate | ST8000NM0055 | 8 TB | 14,447 | 1,307,819 | 64 | 1.79% |
| Seagate | ST4000DM000 | 4 TB | 19,924 | 1,781,822 | 104 | 2.13% |
| Seagate | ST12000NM0007 | 12 TB | 34,981 | 3,158,081 | 238 | 2.75% |
| Seagate | ST500LM030 | 500 GB | 236 | 20,097 | 2 | 3.63% |
| WD | WD5000LPVX | 500 GB | 217 | 19,128 | 2 | 3.82% |
| Toshiba | MQ01ABF050M | 500 GB | 384 | 34,412 | 4 | 4.24% |
| Seagate | ST500LM012 HN | 500 GB | 520 | 45,677 | 10 | 7.99% |
| Toshiba | MQ01ABF050 | 500 GB | 518 | 45,909 | 18 | 14.31% |
| Toshiba | HDWF180 | 8 TB | 21 | 1,817 | 1 | 20.09% |