Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
2015
76 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| WD | WD800JD | 80 GB | 1 | 363 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 24 | 8,654 | 0 | 0.00% |
| WD | WD2500BPVT | 250 GB | 8 | 2,858 | 0 | 0.00% |
| WD | WD800AAJS | 80 GB | 16 | 5,224 | 0 | 0.00% |
| WD | WD15EARS | 2 TB | 1 | 282 | 0 | 0.00% |
| WD | WD10EARX | 1 TB | 3 | 788 | 0 | 0.00% |
| WD | WD10EARS | 1 TB | 5 | 881 | 0 | 0.00% |
| Seagate | ST1500DL001 | 2 TB | 2 | 336 | 0 | 0.00% |
| Hitachi | HDS5C3030BLE630 | 3 TB | 1 | 363 | 0 | 0.00% |
| WD | WD1001FALS | 1 TB | 2 | 416 | 0 | 0.00% |
| WD | WD3200LPVX | 320 GB | 1 | 364 | 0 | 0.00% |
| Samsung | HD154UI | 2 TB | 2 | 419 | 0 | 0.00% |
| WD | WD5000AAJS | 500 GB | 1 | 7 | 0 | 0.00% |
| Seagate | ST1500DM003 | 2 TB | 3 | 657 | 0 | 0.00% |
| WD | WD800LB | 80 GB | 2 | 439 | 0 | 0.00% |
| WD | WD3200AAJB | 320 GB | 3 | 815 | 0 | 0.00% |
| WD | WD3200BEKT | 320 GB | 1 | 363 | 0 | 0.00% |
| Seagate | ST3500320AS | 500 GB | 1 | 363 | 0 | 0.00% |
| WD | WD30EZRX | 3 TB | 1 | 43 | 0 | 0.00% |
| Seagate | ST250LT007 | 250 GB | 4 | 1,302 | 0 | 0.00% |
| WD | WD5002ABYS | 500 GB | 5 | 1,815 | 0 | 0.00% |
| WD | WD2500BEVT | 250 GB | 1 | 363 | 0 | 0.00% |
| WD | WD5003ABYX | 500 GB | 2 | 726 | 0 | 0.00% |
| WD | WD2500AAJB | 250 GB | 1 | 363 | 0 | 0.00% |
| Hitachi | HDT725025VLA380 | 250 GB | 1 | 363 | 0 | 0.00% |
| WD | WD3200AAKS | 320 GB | 1 | 363 | 0 | 0.00% |
| Seagate | ST2000DL003 | 2 TB | 2 | 142 | 0 | 0.00% |
| Seagate | ST2000DL001 | 2 TB | 1 | 96 | 0 | 0.00% |
| HGST | HMS5C4040BLE640 | 4 TB | 3,103 | 1,125,847 | 12 | 0.39% |
| HGST | HMS5C4040ALE640 | 4 TB | 7,129 | 2,573,988 | 43 | 0.61% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 2,723 | 971,319 | 24 | 0.90% |
| Hitachi | HDS5C3030ALA630 | 3 TB | 4,606 | 1,661,443 | 47 | 1.03% |
| Hitachi | HDS723030ALA640 | 3 TB | 1,018 | 365,526 | 18 | 1.80% |
| Toshiba | DT01ACA300 | 3 TB | 53 | 17,204 | 1 | 2.12% |
| Seagate | ST6000DX000 | 6 TB | 1,909 | 510,356 | 30 | 2.15% |
| Hitachi | HDS722020ALA330 | 2 TB | 4,683 | 1,672,359 | 109 | 2.38% |
| Toshiba | MD04ABA500V | 5 TB | 46 | 13,590 | 1 | 2.69% |
| Toshiba | MD04ABA400V | 4 TB | 148 | 35,989 | 3 | 3.04% |
| Seagate | ST4000DM000 | 4 TB | 29,670 | 6,782,765 | 586 | 3.15% |
| Seagate | ST33000651AS | 3 TB | 279 | 52,142 | 5 | 3.50% |
| Seagate | ST4000DX000 | 4 TB | 219 | 68,166 | 7 | 3.75% |
| Seagate | ST9320325AS | 320 GB | 24 | 8,492 | 1 | 4.30% |
| WD | WD40EFRX | 4 TB | 48 | 16,394 | 2 | 4.45% |
| HGST | HDS724040ALE640 | 4 TB | 45 | 15,933 | 2 | 4.58% |
| HGST | HUH728080ALE600 | 8 TB | 47 | 14,803 | 2 | 4.93% |
| WD | WD10EACS | 1 TB | 97 | 12,729 | 2 | 5.74% |
| WD | WD60EFRX | 6 TB | 485 | 162,790 | 27 | 6.05% |
| Seagate | ST500LM012 HN | 500 GB | 519 | 111,360 | 19 | 6.23% |
| Seagate | ST32000542AS | 2 TB | 83 | 5,701 | 1 | 6.40% |
| WD | WD20EFRX | 2 TB | 141 | 33,170 | 7 | 7.70% |
| WD | WD30EFRX | 3 TB | 1,209 | 369,278 | 79 | 7.81% |
| WD | WD1600AAJS | 160 GB | 106 | 27,629 | 7 | 9.25% |
| Seagate | ST3160318AS | 160 GB | 50 | 17,219 | 5 | 10.60% |
| WD | WD5000LPVX | 500 GB | 271 | 85,267 | 25 | 10.70% |
| WD | WD10EADS | 1 TB | 491 | 91,625 | 27 | 10.76% |
| Seagate | ST31500541AS | 2 TB | 1,693 | 366,831 | 109 | 10.85% |
| Hitachi | HDS723030BLE640 | 3 TB | 10 | 3,272 | 1 | 11.15% |
| Seagate | ST3160316AS | 160 GB | 57 | 18,171 | 6 | 12.05% |
| Hitachi | HDS723020BLA642 | 2 TB | 9 | 3,012 | 1 | 12.12% |
| WD | WD1600AAJB | 160 GB | 8 | 2,484 | 1 | 14.69% |
| WD | WD800BB | 80 GB | 43 | 7,145 | 3 | 15.32% |
| Seagate | ST250LM004 HN | 250 GB | 38 | 12,842 | 6 | 17.05% |
| Seagate | ST320LT007 | 320 GB | 86 | 28,761 | 14 | 17.77% |
| Seagate | ST9250315AS | 250 GB | 62 | 21,139 | 11 | 18.99% |
| WD | WD3200BEKX | 320 GB | 14 | 4,315 | 3 | 25.38% |
| Seagate | ST31500341AS | 2 TB | 307 | 46,662 | 34 | 26.60% |
| WD | WD800JB | 80 GB | 18 | 3,994 | 3 | 27.42% |
| WD | WD3200AAJS | 320 GB | 5 | 1,251 | 1 | 29.18% |
| Seagate | ST3000DM001 | 3 TB | 1,168 | 124,494 | 106 | 31.08% |
| WD | WD10EADX | 1 TB | 25 | 3,129 | 3 | 34.99% |
| WD | WD2500AAJS | 250 GB | 3 | 1,010 | 1 | 36.14% |
| WD | WD800AAJB | 80 GB | 16 | 4,109 | 5 | 44.41% |
| WD | WD1600BPVT | 160 GB | 2 | 719 | 1 | 50.77% |
| Seagate | ST2000VN000 | 2 TB | 10 | 1,388 | 2 | 52.59% |
| Seagate | ST1500DL003 | 2 TB | 24 | 2,204 | 13 | 215.29% |
| Seagate | ST320005XXXX | 2 TB | 2 | 67 | 1 | 544.78% |