3.3Default logical geometry
Cylinders | Read/write heads | Sectors per track |
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16,383 | 16 | 63 |
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LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to
3.4 | Physical organization |
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Drive model | Read/write heads | Number of discs | |
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750GB |
| 4 | 2 |
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500GB |
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3.5 | Recording and interface technology |
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Interface |
| Serial ATA (SATA) |
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Recording method | Perpendicular | |
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Recording density BPI (bits/in max) | 1778k | |
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Track density TPI (tracks/in max) | 317k | |
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Areal density (Gb/in2 max) | 563.6 | |
Spindle speed (RPM) (± 0.2%) | 7200 | |
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Maximum Internal transfer rate (Gb/s) | 1.23 | |
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I/O | 6.0 | |
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Interleave |
| 1:1 |
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Cache buffer - ST750LX003 and ST500LX003 | 32MB (32,768KB) | |
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3.6Physical characteristics
Drive specification |
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Height | (mm) | 9.50 ± 0.20 | |
| (in) | 0.370 | ± 0.008 |
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Width | (mm) | 69.85 | ± 0.25 |
| (in) | 2.750 | ± 0.010 |
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Length | (mm) | 100.30 ± 0.25 | |
| (in) | 3.949 ± 0.010 | |
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Typical weight |
| 115 g |
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| 0.253 lb | |
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Momentus XT Product Manual, Rev. D | 7 |