Seagate ST320LT007 Momentus Thin SATA Product Manual - Page 12
Formatted capacity, Default logical geometry, Physical organization
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3.2 Formatted capacity Formatted capacity* ST320LT020 - 9YG142 ST250LT003 - 9YG14C ST160LT003 - 9YG141 Guaranteed logical blocks (LBA) - 512 emulation 625,142,448 488,397,168 312,581,808 Bytes per physical sector 4096 *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 (sectors) 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 48bit addressing support of drives with capacities over 137GB. 3.3 Default logical geometry Cylinders 16,383 Read/write heads 16 Sectors per track 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 320GB models 250GB models 160GB models Read/write heads 2 1 Number of disks 1 6 Momentus Thin Product Manual, Rev. B