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Hitachi Hard Drives
This is a list of all tested Hitachi hard drive models and their MTBFs. See more info on reliability test in the README.
Contents
HDD by Model
Please take all columns into account when reading the table. Pay attention on the number of tested samples and power-on days. Simultaneous high values of both MTBF and errors are possible if only rare drives in the subset encounter errors.
Days — avg. days per sample, Err — avg. errors per sample, MTBF — avg. MTBF in years per sample.
| MFG | Model | Size | Samples | Days | Err | MTBF |
|---|---|---|---|---|---|---|
| Hitachi | HDT721010SLA360 | 1 TB | 1 | 3782 | 0 | 10.36 |
| Hitachi | HDS725050KLA360 | 500 GB | 1 | 3763 | 0 | 10.31 |
| Hitachi | HDT721032SLA360 | 320 GB | 1 | 3534 | 0 | 9.68 |
| Hitachi | HUA7250SBSUN500G | 500 GB | 2 | 2785 | 0 | 7.63 |
| Hitachi | HUA722020ALA331 | 2 TB | 2 | 2745 | 0 | 7.52 |
| Hitachi | HDT725025VLA380 | 250 GB | 1 | 2680 | 0 | 7.34 |
| Hitachi | HTS542525K9SA00 | 250 GB | 1 | 2643 | 0 | 7.24 |
| Hitachi | HUA723020ALA641 | 2 TB | 7 | 2259 | 0 | 6.19 |
| Hitachi | HDS721616PLAT80 | 160 GB | 1 | 2187 | 0 | 5.99 |
| Hitachi | HDS728080PLA380 | 82 GB | 1 | 2086 | 0 | 5.72 |
| Hitachi | HUA723020ALA640 | 2 TB | 2 | 1944 | 0 | 5.33 |
| Hitachi | HUA722020ALA330 | 2 TB | 4 | 2204 | 91 | 4.84 |
| Hitachi | HDS721032CLA362 | 320 GB | 1 | 1323 | 0 | 3.63 |
| Hitachi | HDS721010KLA330 | 1 TB | 1 | 3610 | 2 | 3.30 |
| Hitachi | HTS545025B9SA02 | 250 GB | 1 | 1008 | 0 | 2.76 |
| Hitachi | HDS723020BLA642 | 2 TB | 1 | 1007 | 0 | 2.76 |
| Hitachi | HDS723030ALA640 | 3 TB | 1 | 828 | 0 | 2.27 |
| Hitachi | HTS723225L9A360 | 250 GB | 1 | 644 | 0 | 1.77 |
| Hitachi | HUA723030ALA640 | 3 TB | 1 | 563 | 0 | 1.54 |
| Hitachi | HTS725050A7E630 | 500 GB | 1 | 535 | 0 | 1.47 |
| Hitachi | HTS541660J9SA00 | 64 GB | 1 | 517 | 0 | 1.42 |
| Hitachi | HTS547550A9E384 | 500 GB | 3 | 681 | 49 | 1.10 |
| Hitachi | HTS723220L9A360 | 200 GB | 1 | 401 | 0 | 1.10 |
| Hitachi | HDT725032VLA380 | 320 GB | 1 | 389 | 0 | 1.07 |
| Hitachi | HTS721060G9SA00 | 64 GB | 1 | 1545 | 3 | 1.06 |
| Hitachi | HUS724030ALE641 | 3 TB | 5 | 328 | 0 | 0.90 |
| Hitachi | HTE723225A7A364 | 250 GB | 1 | 227 | 0 | 0.62 |
| Hitachi | HDS721010CLA630 | 1 TB | 1 | 678 | 2 | 0.62 |
| Hitachi | HTS543232L9A300 | 320 GB | 1 | 223 | 0 | 0.61 |
| Hitachi | HDS5C3030ALA630 | 3 TB | 5 | 247 | 5 | 0.55 |
| Hitachi | HTS543225L9A300 | 250 GB | 1 | 736 | 5 | 0.34 |
| Hitachi | HUS724040ALE641 | 4 TB | 8 | 134 | 1 | 0.33 |
| Hitachi | HTS421260H9AT00 | 64 GB | 1 | 1338 | 12 | 0.28 |
| Hitachi | HUA721010KLA330 | 1 TB | 1 | 52 | 0 | 0.14 |
| Hitachi | HTS543232L9SA02 | 320 GB | 1 | 1954 | 37 | 0.14 |
| Hitachi | HTS543232A7A384 | 320 GB | 2 | 198 | 512 | 0.14 |
| Hitachi | HTS725025A9A364 | 250 GB | 1 | 548 | 11 | 0.13 |
| Hitachi | HTS541060G9SA00 | 64 GB | 1 | 255 | 6 | 0.10 |
| Hitachi | HDP725050GLA360 | 500 GB | 1 | 1174 | 38 | 0.08 |
| Hitachi | HTS541680J9SA00 | 80 GB | 1 | 977 | 36 | 0.07 |
| Hitachi | HTS543212L9A300 | 120 GB | 2 | 1802 | 550 | 0.02 |
| Hitachi | HDP725016GLA380 | 160 GB | 1 | 1804 | 250 | 0.02 |
| Hitachi | HDS721010CLA332 | 1 TB | 1 | 1511 | 220 | 0.02 |
| Hitachi | HTS725032A7E630 | 320 GB | 1 | 348 | 1025 | 0.00 |
| Hitachi | HTS545050A7E380 | 500 GB | 1 | 93 | 345 | 0.00 |
| Hitachi | DK23AA-12 | 12 GB | 1 | 4 | 31 | 0.00 |
| Hitachi | HTS545032B9A300 | 320 GB | 1 | 103 | 1024 | 0.00 |
| Hitachi | HTS721060G9AT00 | 64 GB | 1 | 0 | 37 | 0.00 |
HDD by Family
Please take all columns into account when reading the table. Pay attention on the number of tested samples and power-on days. Simultaneous high values of both MTBF and errors are possible if only rare drives in the subset encounter errors.
Days — avg. days per sample, Err — avg. errors per sample, MTBF — avg. MTBF in years per sample.
| MFG | Family | Models | Samples | Days | Err | MTBF |
|---|---|---|---|---|---|---|
| Hitachi | Deskstar 7K500 | 1 | 1 | 3763 | 0 | 10.31 |
| Hitachi | Deskstar 7K1000.B | 2 | 2 | 3658 | 0 | 10.02 |
| Hitachi | Sun Internal | 1 | 2 | 2785 | 0 | 7.63 |
| Hitachi | Travelstar 5K250 | 1 | 1 | 2643 | 0 | 7.24 |
| Hitachi | Deskstar 7K160 | 1 | 1 | 2187 | 0 | 5.99 |
| Hitachi | Ultrastar A7K2000 | 2 | 6 | 2385 | 61 | 5.74 |
| Hitachi | Deskstar 7K80 | 1 | 1 | 2086 | 0 | 5.72 |
| Hitachi | Ultrastar 7K3000 | 3 | 10 | 2027 | 0 | 5.55 |
| Hitachi | Deskstar T7K500 | 2 | 2 | 1535 | 0 | 4.21 |
| Hitachi | Deskstar 7K1000 | 1 | 1 | 3610 | 2 | 3.30 |
| Hitachi | Deskstar 7K3000 | 2 | 2 | 918 | 0 | 2.52 |
| Hitachi | Travelstar 7K320 | 2 | 2 | 523 | 0 | 1.43 |
| Hitachi | Deskstar 7K1000.C | 3 | 3 | 1171 | 74 | 1.42 |
| Hitachi | Travelstar 5K500.B | 2 | 2 | 555 | 512 | 1.38 |
| Hitachi | Travelstar 5K750 | 1 | 3 | 681 | 49 | 1.10 |
| Hitachi | Travelstar 5K160 | 2 | 2 | 747 | 18 | 0.75 |
| Hitachi | Travelstar Z7K500 | 2 | 2 | 442 | 513 | 0.73 |
| Hitachi | Travelstar Z7K320 | 1 | 1 | 227 | 0 | 0.62 |
| Hitachi | Ultrastar 7K4000 | 2 | 13 | 208 | 1 | 0.55 |
| Hitachi | Deskstar 5K3000 | 1 | 5 | 247 | 5 | 0.55 |
| Hitachi | Travelstar 7K100 | 2 | 2 | 772 | 20 | 0.53 |
| Hitachi | Travelstar 4K120 | 1 | 1 | 1338 | 12 | 0.28 |
| Hitachi | Travelstar 5K320 | 4 | 5 | 1304 | 229 | 0.23 |
| Hitachi | Ultrastar A7K1000 | 1 | 1 | 52 | 0 | 0.14 |
| Hitachi | Travelstar Z5K320 | 1 | 2 | 198 | 512 | 0.14 |
| Hitachi | Travelstar 7K500 | 1 | 1 | 548 | 11 | 0.13 |
| Hitachi | Travelstar 5K100 | 1 | 1 | 255 | 6 | 0.10 |
| Hitachi | Deskstar P7K500 | 2 | 2 | 1489 | 144 | 0.05 |
| Hitachi | Travelstar Z5K500 | 1 | 1 | 93 | 345 | 0.00 |
| Hitachi | Travelstar DK23XX/D... | 1 | 1 | 4 | 31 | 0.00 |