Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q2 2018
45 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| WD | WD3200BEKX | 320 GB | 2 | 95 | 0 | 0.00% |
| Seagate | ST9250315AS | 250 GB | 42 | 2,616 | 0 | 0.00% |
| Seagate | ST250LM004 HN | 250 GB | 9 | 550 | 0 | 0.00% |
| Seagate | ST9320325AS | 320 GB | 19 | 1,500 | 0 | 0.00% |
| WD | WD3200AAJS | 320 GB | 2 | 118 | 0 | 0.00% |
| Seagate | ST3160316AS | 160 GB | 9 | 716 | 0 | 0.00% |
| WD | WD2500BPVT | 250 GB | 2 | 54 | 0 | 0.00% |
| WD | WD2500AAJS | 250 GB | 2 | 95 | 0 | 0.00% |
| WD | WD40EFRX | 4 TB | 46 | 4,173 | 0 | 0.00% |
| Toshiba | MG07ACA14TA | 14 TB | 79 | 539 | 0 | 0.00% |
| Toshiba | MD04ABA500V | 5 TB | 45 | 4,095 | 0 | 0.00% |
| Toshiba | MD04ABA400V | 4 TB | 146 | 13,286 | 0 | 0.00% |
| Seagate | ST6000DM001 | 6 TB | 15 | 1,365 | 0 | 0.00% |
| HGST | HUS726040ALE610 | 4 TB | 30 | 2,341 | 0 | 0.00% |
| Toshiba | HDWE160 | 6 TB | 8 | 337 | 0 | 0.00% |
| Seagate | ST6000DM004 | 6 TB | 2 | 182 | 0 | 0.00% |
| Seagate | ST10000NM0086 | 10 TB | 1,220 | 111,020 | 0 | 0.00% |
| Seagate | ST8000DM005 | 8 TB | 5 | 455 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 10 | 703 | 0 | 0.00% |
| Toshiba | MQ01ABF050M | 500 GB | 286 | 23,406 | 0 | 0.00% |
| Toshiba | HDWF180 | 8 TB | 20 | 1,819 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 56 | 5,096 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 91 | 0 | 0.00% |
| WD | WD30EFRX | 3 TB | 180 | 16,380 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 3 | 228 | 0 | 0.00% |
| Seagate | ST320LT007 | 320 GB | 9 | 775 | 0 | 0.00% |
| WD | WD1600AAJS | 160 GB | 39 | 3,063 | 0 | 0.00% |
| Seagate | ST3160318AS | 160 GB | 3 | 199 | 0 | 0.00% |
| WD | WD3200LPVX | 320 GB | 1 | 66 | 0 | 0.00% |
| WD | WD1600BPVT | 160 GB | 1 | 20 | 0 | 0.00% |
| HGST | HMS5C4040BLE640 | 4 TB | 15,342 | 1,384,015 | 10 | 0.26% |
| HGST | HMS5C4040ALE640 | 4 TB | 5,710 | 441,707 | 5 | 0.41% |
| Seagate | ST8000NM0055 | 8 TB | 14,417 | 1,309,622 | 23 | 0.64% |
| Seagate | ST6000DX000 | 6 TB | 1,881 | 168,450 | 4 | 0.87% |
| Seagate | ST8000DM002 | 8 TB | 9,911 | 899,939 | 25 | 1.01% |
| Seagate | ST12000NM0007 | 12 TB | 21,676 | 1,816,181 | 56 | 1.13% |
| HGST | HUH728080ALE600 | 8 TB | 1,047 | 95,056 | 3 | 1.15% |
| WD | WD5000LPVX | 500 GB | 304 | 27,005 | 1 | 1.35% |
| Seagate | ST4000DM000 | 4 TB | 31,195 | 2,645,254 | 134 | 1.85% |
| WD | WD60EFRX | 6 TB | 437 | 39,722 | 3 | 2.76% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 108 | 7,791 | 1 | 4.68% |
| Seagate | ST500LM012 HN | 500 GB | 664 | 57,727 | 12 | 7.59% |
| Toshiba | MQ01ABF050 | 500 GB | 562 | 50,180 | 12 | 8.73% |
| Seagate | ST4000DM005 | 4 TB | 84 | 6,129 | 2 | 11.91% |
| Seagate | ST8000DM004 | 8 TB | 4 | 45 | 1 | 811.11% |