
6 Momentus Thin Product Manual, Rev. E
3.2 Formatted capacity
Formatted capacity* Guaranteed logical blocks (LBA) - 512 emulation Bytes per physical sector
ST320LT020 - 9YG142 625,142,448
4096ST250LT003 - 9YG14C 488,397,168
ST160LT003 - 9YG141 312,581,808
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
3.2.1 LBA mode
When addressing these drives in LBA mode, all blocks (s
ectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed logical blocks (LBA) as defined above.
See Section 5.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-
bit addressing support of drives with capacities over 137GB.
3.3 Default logical geometry
Cylinders Read/write heads Sectors per track
16,383 16 63
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed logical blocks (LBA) as defined above.
3.4 Physical organization
Models Read/write heads Number of disks
320GB models
2
1250GB models
160GB models 1
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