Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q1 2016
67 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| WD | WD5002ABYS | 500 GB | 5 | 453 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 24 | 2,077 | 0 | 0.00% |
| HGST | HUH728080ALE600 | 8 TB | 45 | 4,095 | 0 | 0.00% |
| WD | WD3200AAJS | 320 GB | 3 | 197 | 0 | 0.00% |
| WD | WD5003ABYX | 500 GB | 2 | 182 | 0 | 0.00% |
| WD | WD2500BEVT | 250 GB | 1 | 89 | 0 | 0.00% |
| WD | WD2500AAJS | 250 GB | 3 | 273 | 0 | 0.00% |
| WD | WD800AAJS | 80 GB | 14 | 1,273 | 0 | 0.00% |
| WD | WD2500BPVT | 250 GB | 8 | 727 | 0 | 0.00% |
| WD | WD3200BEKT | 320 GB | 1 | 90 | 0 | 0.00% |
| Seagate | ST31500541AS | 2 TB | 222 | 6,006 | 0 | 0.00% |
| Seagate | ST31500341AS | 2 TB | 1 | 15 | 0 | 0.00% |
| Seagate | ST4000DX002 | 4 TB | 2 | 8 | 0 | 0.00% |
| Toshiba | MD04ABA400V | 4 TB | 146 | 13,254 | 0 | 0.00% |
| Toshiba | MD04ABA500V | 5 TB | 45 | 4,095 | 0 | 0.00% |
| Hitachi | HDS723020BLA642 | 2 TB | 8 | 712 | 0 | 0.00% |
| Seagate | ST6000DX000 | 6 TB | 1,882 | 171,262 | 0 | 0.00% |
| WD | WD10EADX | 1 TB | 10 | 95 | 0 | 0.00% |
| Seagate | ST3500320AS | 500 GB | 1 | 91 | 0 | 0.00% |
| Hitachi | HDS723030BLE640 | 3 TB | 9 | 819 | 0 | 0.00% |
| WD | WD15EARS | 2 TB | 1 | 23 | 0 | 0.00% |
| WD | WD10EARX | 1 TB | 2 | 20 | 0 | 0.00% |
| WD | WD10EALS | 1 TB | 1 | 8 | 0 | 0.00% |
| WD | WD10EARS | 1 TB | 2 | 47 | 0 | 0.00% |
| Hitachi | HDS5C3030BLE630 | 3 TB | 1 | 91 | 0 | 0.00% |
| WD | WD1001FALS | 1 TB | 1 | 6 | 0 | 0.00% |
| Samsung | HD154UI | 2 TB | 1 | 5 | 0 | 0.00% |
| Seagate | ST2000VN000 | 2 TB | 6 | 546 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 43 | 3,913 | 0 | 0.00% |
| HGST | HMS5C4040BLE640 | 4 TB | 3,091 | 281,281 | 0 | 0.00% |
| WD | WD1600AAJS | 160 GB | 100 | 8,999 | 0 | 0.00% |
| WD | WD40EFRX | 4 TB | 46 | 4,186 | 0 | 0.00% |
| WD | WD3200LPVX | 320 GB | 1 | 72 | 0 | 0.00% |
| WD | WD3200AAKS | 320 GB | 1 | 90 | 0 | 0.00% |
| Hitachi | HDT725025VLA380 | 250 GB | 1 | 91 | 0 | 0.00% |
| Seagate | ST250LM004 HN | 250 GB | 35 | 2,882 | 0 | 0.00% |
| WD | WD2500AAJB | 250 GB | 1 | 91 | 0 | 0.00% |
| Seagate | ST9320325AS | 320 GB | 23 | 2,015 | 0 | 0.00% |
| HGST | HMS5C4040ALE640 | 4 TB | 7,085 | 644,193 | 10 | 0.57% |
| Hitachi | HDS5C3030ALA630 | 3 TB | 4,563 | 414,671 | 8 | 0.70% |
| Seagate | ST500LM012 HN | 500 GB | 653 | 51,349 | 1 | 0.71% |
| Hitachi | HDS723030ALA640 | 3 TB | 1,000 | 90,921 | 2 | 0.80% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 2,713 | 246,017 | 7 | 1.04% |
| Hitachi | HDS722020ALA330 | 2 TB | 4,503 | 403,606 | 20 | 1.81% |
| Seagate | ST4000DM000 | 4 TB | 34,988 | 2,883,058 | 200 | 2.53% |
| WD | WD5000LPVX | 500 GB | 296 | 25,389 | 2 | 2.88% |
| WD | WD30EFRX | 3 TB | 1,066 | 95,434 | 10 | 3.83% |
| WD | WD60EFRX | 6 TB | 464 | 41,678 | 6 | 5.25% |
| Seagate | ST3160316AS | 160 GB | 52 | 4,675 | 1 | 7.81% |
| Toshiba | DT01ACA300 | 3 TB | 48 | 4,277 | 1 | 8.53% |
| Seagate | ST4000DX000 | 4 TB | 212 | 19,157 | 5 | 9.53% |
| WD | WD20EFRX | 2 TB | 141 | 11,744 | 4 | 12.43% |
| Seagate | ST9250315AS | 250 GB | 56 | 4,540 | 2 | 16.08% |
| Seagate | ST3160318AS | 160 GB | 47 | 4,151 | 2 | 17.59% |
| WD | WD3200BEKX | 320 GB | 11 | 962 | 1 | 37.94% |
| WD | WD10EADS | 1 TB | 239 | 3,528 | 6 | 62.08% |
| WD | WD10EACS | 1 TB | 43 | 554 | 1 | 65.88% |
| WD | WD800AAJB | 80 GB | 7 | 499 | 1 | 73.15% |
| WD | WD1600AAJB | 160 GB | 6 | 522 | 2 | 139.85% |
| Seagate | ST320LT007 | 320 GB | 73 | 5,354 | 31 | 211.34% |
| WD | WD3200AAJB | 320 GB | 2 | 158 | 1 | 231.01% |
| Seagate | ST250LT007 | 250 GB | 4 | 280 | 2 | 260.71% |
| WD | WD1600BPVT | 160 GB | 2 | 112 | 1 | 325.89% |
| WD | WD800JB | 80 GB | 4 | 323 | 3 | 339.01% |
| WD | WD800BB | 80 GB | 5 | 397 | 4 | 367.76% |
| WD | WD800JD | 80 GB | 1 | 84 | 1 | 434.52% |
| WD | WD800LB | 80 GB | 1 | 76 | 1 | 480.26% |