Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q4 2025
77 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| WD | WD5000LPCX | 500 GB | 48 | 4,412 | 0 | 0.00% |
| Micron | MTFDDAV240TCB | 240 GB | 86 | 7,909 | 0 | 0.00% |
| Seagate | ZA250CM10002 | 250 GB | 490 | 44,498 | 0 | 0.00% |
| WD | WDS250G2B0A | 250 GB | 170 | 15,307 | 0 | 0.00% |
| HGST | HUH721010ALE600 | 10 TB | 20 | 1,839 | 0 | 0.00% |
| Seagate | ZA500CM10003 | 500 GB | 3 | 276 | 0 | 0.00% |
| Seagate | Seagate IronWolf ZA250NM10002 | 250 GB | 174 | 15,277 | 0 | 0.00% |
| Seagate | ST18000NM000J | 18 TB | 60 | 5,520 | 0 | 0.00% |
| WD | WD5000LPVX | 500 GB | 39 | 3,586 | 0 | 0.00% |
| Seagate | ST16000NM005G | 16 TB | 25 | 2,300 | 0 | 0.00% |
| Seagate | ST16000NM002J | 16 TB | 465 | 42,714 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 7 | 644 | 0 | 0.00% |
| Toshiba | MQ01ABF050M | 500 GB | 104 | 9,274 | 0 | 0.00% |
| Toshiba | HDWF180 | 8 TB | 55 | 5,050 | 0 | 0.00% |
| Seagate | ST500LM021 | 500 GB | 27 | 2,390 | 0 | 0.00% |
| Seagate | ST500LM012 HN | 500 GB | 68 | 6,175 | 0 | 0.00% |
| Samsung | Samsung SSD 850 EVO 1TB | 1 TB | 2 | 184 | 0 | 0.00% |
| Seagate | ZA2000CM10002 | 2 TB | 2 | 184 | 0 | 0.00% |
| HGST | HUS728T8TALE6L4 | 8 TB | 19 | 1,748 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 92 | 0 | 0.00% |
| Seagate | ST12000NM003G | 12 TB | 28 | 2,568 | 0 | 0.00% |
| Seagate | ZA500CM10002 | 500 GB | 11 | 1,012 | 0 | 0.00% |
| Seagate | ST16000NM000G | 16 TB | 17 | 1,357 | 0 | 0.00% |
| Samsung | Samsung SSD 860 PRO 2TB | 2 TB | 2 | 184 | 0 | 0.00% |
| Seagate | ST12000NM0117 | 12 TB | 6 | 552 | 0 | 0.00% |
| Samsung | Samsung SSD 870 EVO 2TB | 2 TB | 1 | 92 | 0 | 0.00% |
| Micron | MTFDDAV480TCB | 480 GB | 2 | 184 | 0 | 0.00% |
| Samsung | Samsung SSD 850 PRO 1TB | 1 TB | 1 | 92 | 0 | 0.00% |
| Dell | SSDSCKKB480G8R | 480 GB | 1 | 92 | 0 | 0.00% |
| Dell | SSDSCKKB240GZR | 240 GB | 1 | 92 | 0 | 0.00% |
| Dell | DELLBOSS VD | 480 GB | 431 | 39,635 | 0 | 0.00% |
| WD | Blue SA510 2.5 250GB | 250 GB | 145 | 13,239 | 0 | 0.00% |
| Micron | MTFDDAK480TDS | 480 GB | 3 | 276 | 0 | 0.00% |
| HGST | HMS5C4040ALE640 | 4 TB | 11 | 1,012 | 0 | 0.00% |
| Seagate | ZA250CM10003 | 250 GB | 1,074 | 98,559 | 0 | 0.00% |
| Seagate | Seagate SSD | 250 GB | 99 | 9,099 | 0 | 0.00% |
| Seagate | ST14000NM0018 | 14 TB | 62 | 5,696 | 0 | 0.00% |
| Seagate | Seagate FireCuda 120 SSD ZA500GM10001 | 500 GB | 6 | 552 | 0 | 0.00% |
| Crucial | CT250MX500SSD1 | 250 GB | 720 | 65,881 | 0 | 0.00% |
| Toshiba | MQ01ABF050 | 500 GB | 129 | 11,650 | 0 | 0.00% |
| Seagate | ST10000NM001G | 10 TB | 28 | 2,571 | 0 | 0.00% |
| Seagate | ST500LM030 | 500 GB | 166 | 15,084 | 0 | 0.00% |
| Seagate | ST8000NM000A | 8 TB | 247 | 22,700 | 0 | 0.00% |
| Seagate | ST8000DM005 | 8 TB | 24 | 2,193 | 0 | 0.00% |
| WD | WUH722222ALE6L4 | 22 TB | 44,425 | 3,945,245 | 25 | 0.23% |
| Seagate | ST12000NM000J | 12 TB | 1,066 | 96,136 | 1 | 0.38% |
| WD | WUH722626ALE6L4 | 26 TB | 1,201 | 91,690 | 1 | 0.40% |
| Seagate | ST16000NM001G | 16 TB | 34,410 | 3,149,031 | 35 | 0.41% |
| Toshiba | MG08ACA16TE | 16 TB | 6,238 | 568,599 | 9 | 0.58% |
| HGST | HUH721212ALE600 | 12 TB | 2,610 | 239,745 | 4 | 0.61% |
| Toshiba | MG10ACA20TE | 20 TB | 18,031 | 1,656,127 | 28 | 0.62% |
| WD | WUH721414ALE6L4 | 14 TB | 8,650 | 794,489 | 14 | 0.64% |
| WD | WUH721816ALE6L4 | 16 TB | 26,715 | 2,445,841 | 45 | 0.67% |
| Toshiba | MG08ACA16TA | 16 TB | 40,115 | 3,670,933 | 68 | 0.68% |
| Toshiba | MG11ACA24TE | 24 TB | 4,806 | 349,939 | 7 | 0.73% |
| Toshiba | MG07ACA14TA | 14 TB | 37,345 | 3,428,534 | 76 | 0.81% |
| Seagate | ST12000NM001G | 12 TB | 13,248 | 1,214,910 | 31 | 0.93% |
| Seagate | ST14000NM001G | 14 TB | 10,557 | 968,495 | 34 | 1.28% |
| WD | WUH721816ALE6L0 | 16 TB | 2,994 | 274,524 | 11 | 1.46% |
| Seagate | ST8000NM0055 | 8 TB | 13,300 | 1,217,828 | 56 | 1.68% |
| Seagate | ST8000DM002 | 8 TB | 8,960 | 818,034 | 38 | 1.70% |
| Seagate | ST14000NM000J | 14 TB | 412 | 36,688 | 2 | 1.99% |
| HGST | HMS5C4040BLE640 | 4 TB | 187 | 17,151 | 1 | 2.13% |
| Seagate | ST12000NM0008 | 12 TB | 18,771 | 1,715,709 | 112 | 2.38% |
| Toshiba | MG07ACA14TEY | 14 TB | 994 | 89,854 | 6 | 2.44% |
| HGST | HUH721212ALE604 | 12 TB | 13,371 | 1,221,499 | 85 | 2.54% |
| Toshiba | MG09ACA16TE | 16 TB | 350 | 28,207 | 2 | 2.59% |
| HGST | HUH721212ALN604 | 12 TB | 9,877 | 900,963 | 76 | 3.08% |
| Seagate | ST14000NM0138 | 14 TB | 1,264 | 115,388 | 10 | 3.16% |
| Seagate | ST24000NM002H | 24 TB | 8,467 | 676,414 | 65 | 3.51% |
| Seagate | ST16000NM000J | 16 TB | 112 | 10,088 | 1 | 3.62% |
| Seagate | ST12000NM0007 | 12 TB | 993 | 90,539 | 9 | 3.63% |
| Toshiba | MG08ACA16TEY | 16 TB | 4,938 | 449,560 | 51 | 4.14% |
| HGST | HUH728080ALE604 | 8 TB | 79 | 7,172 | 1 | 5.09% |
| Seagate | ST10000NM0086 | 10 TB | 1,000 | 90,651 | 13 | 5.23% |
| HGST | HUH728080ALE600 | 8 TB | 1,073 | 95,800 | 27 | 10.29% |
| Seagate | ST14000NM002J | 14 TB | 25 | 2,174 | 1 | 16.79% |