Quarterly Reports
Every reporting period Backblaze has published Drive Stats for, back to 2013.
Q2 2016
65 model(s) reported this period.
Brand
Capacity
| Brand | Model | Capacity | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|---|---|
| WD | WD3200LPVX | 320 GB | 1 | 91 | 0 | 0.00% |
| Toshiba | MQ01ABF050 | 500 GB | 23 | 178 | 0 | 0.00% |
| Seagate | ST4000DX002 | 4 TB | 2 | 177 | 0 | 0.00% |
| WD | WD5000BPKT | 500 GB | 24 | 2,169 | 0 | 0.00% |
| HGST | HUH728080ALE600 | 8 TB | 45 | 3,825 | 0 | 0.00% |
| Toshiba | MD04ABA400V | 4 TB | 146 | 13,011 | 0 | 0.00% |
| WD | WD5000LPCX | 500 GB | 26 | 152 | 0 | 0.00% |
| Seagate | ST1000LM024 HN | 1 TB | 1 | 8 | 0 | 0.00% |
| Seagate | ST3500320AS | 500 GB | 1 | 91 | 0 | 0.00% |
| Seagate | ST31500541AS | 2 TB | 45 | 1,215 | 0 | 0.00% |
| WD | WD2500AAJS | 250 GB | 3 | 273 | 0 | 0.00% |
| WD | WD2500BPVT | 250 GB | 8 | 696 | 0 | 0.00% |
| WD | WD3200AAJS | 320 GB | 3 | 273 | 0 | 0.00% |
| WD | WD1600BPVT | 160 GB | 1 | 91 | 0 | 0.00% |
| WD | WD3200AAKS | 320 GB | 1 | 91 | 0 | 0.00% |
| Hitachi | HDT725025VLA380 | 250 GB | 1 | 90 | 0 | 0.00% |
| WD | WD2500AAJB | 250 GB | 1 | 63 | 0 | 0.00% |
| Hitachi | HDS723020BLA642 | 2 TB | 6 | 543 | 0 | 0.00% |
| WD | WD10EACS | 1 TB | 47 | 307 | 0 | 0.00% |
| WD | WD10EADX | 1 TB | 7 | 50 | 0 | 0.00% |
| WD | WD5003ABYX | 500 GB | 2 | 175 | 0 | 0.00% |
| Hitachi | HDS723030BLE640 | 3 TB | 9 | 819 | 0 | 0.00% |
| WD | WD15EARS | 2 TB | 1 | 6 | 0 | 0.00% |
| WD | WD10EALS | 1 TB | 1 | 6 | 0 | 0.00% |
| WD | WD10EARS | 1 TB | 1 | 6 | 0 | 0.00% |
| Hitachi | HDS5C3030BLE630 | 3 TB | 1 | 91 | 0 | 0.00% |
| WD | WD1001FALS | 1 TB | 1 | 2 | 0 | 0.00% |
| WD | WD2500BEVT | 250 GB | 1 | 91 | 0 | 0.00% |
| Seagate | ST2000VN000 | 2 TB | 6 | 456 | 0 | 0.00% |
| HGST | HDS724040ALE640 | 4 TB | 43 | 3,913 | 0 | 0.00% |
| HGST | HMS5C4040ALE640 | 4 TB | 7,075 | 643,762 | 2 | 0.11% |
| Hitachi | HDS5C4040ALE630 | 4 TB | 2,707 | 246,223 | 1 | 0.15% |
| HGST | HMS5C4040BLE640 | 4 TB | 8,481 | 548,083 | 8 | 0.53% |
| WD | WD60EFRX | 6 TB | 458 | 41,663 | 1 | 0.88% |
| Hitachi | HDS5C3030ALA630 | 3 TB | 4,555 | 410,821 | 11 | 0.98% |
| Seagate | ST6000DX000 | 6 TB | 1,888 | 169,927 | 5 | 1.07% |
| Seagate | ST500LM012 HN | 500 GB | 796 | 65,825 | 2 | 1.11% |
| WD | WD5000LPVX | 500 GB | 325 | 27,723 | 1 | 1.32% |
| Hitachi | HDS722020ALA330 | 2 TB | 4,289 | 362,642 | 20 | 2.01% |
| Seagate | ST4000DM000 | 4 TB | 34,965 | 3,126,610 | 228 | 2.66% |
| Seagate | ST8000DM002 | 8 TB | 2,754 | 35,840 | 3 | 3.06% |
| Hitachi | HDS723030ALA640 | 3 TB | 998 | 90,651 | 8 | 3.22% |
| WD | WD30EFRX | 3 TB | 1,086 | 96,673 | 12 | 4.53% |
| WD | WD20EFRX | 2 TB | 151 | 12,423 | 2 | 5.88% |
| Seagate | ST9250315AS | 250 GB | 54 | 4,867 | 1 | 7.50% |
| Seagate | ST3160316AS | 160 GB | 52 | 4,384 | 1 | 8.33% |
| Toshiba | DT01ACA300 | 3 TB | 47 | 4,206 | 1 | 8.68% |
| WD | WD40EFRX | 4 TB | 47 | 4,186 | 1 | 8.72% |
| Toshiba | MD04ABA500V | 5 TB | 46 | 4,095 | 1 | 8.91% |
| WD | WD1600AAJS | 160 GB | 100 | 8,609 | 4 | 16.96% |
| Seagate | ST9320325AS | 320 GB | 24 | 2,054 | 1 | 17.77% |
| Seagate | ST4000DX000 | 4 TB | 207 | 18,428 | 10 | 19.81% |
| Seagate | ST250LM004 HN | 250 GB | 34 | 2,927 | 2 | 24.94% |
| WD | WD10EADS | 1 TB | 185 | 1,296 | 1 | 28.16% |
| Seagate | ST3160318AS | 160 GB | 45 | 3,755 | 4 | 38.88% |
| WD | WD3200BEKX | 320 GB | 10 | 840 | 1 | 43.45% |
| WD | WD5002ABYS | 500 GB | 5 | 376 | 1 | 97.07% |
| WD | WD800AAJB | 80 GB | 3 | 111 | 1 | 328.83% |
| Seagate | ST320LT007 | 320 GB | 42 | 2,445 | 30 | 447.85% |
| WD | WD800JB | 80 GB | 1 | 61 | 1 | 598.36% |
| Seagate | ST250LT007 | 250 GB | 2 | 116 | 2 | 629.31% |
| WD | WD1600AAJB | 160 GB | 4 | 92 | 2 | 793.48% |
| WD | WD800AAJS | 80 GB | 14 | 460 | 14 | 1110.87% |
| WD | WD800BB | 80 GB | 1 | 27 | 1 | 1351.85% |
| WD | WD3200BEKT | 320 GB | 1 | 9 | 1 | 4055.56% |