Seagate ST3320413AS Barracuda 7200.9 SATA Product Manual - Page 16
Formatted capacity, Default logical geometry
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2.2 Formatted capacity Model ST3160811AS ST3160211AS ST3120811AS ST3120211AS ST380811AS ST380211AS ST340211AS Formatted capacity* 160 Gbytes 160 Gbytes 120 Gbytes 120 Gbytes 80 Gbytes 80 Gbytes 40 Gbytes Guaranteed sectors 312,581,808 312,581,808 234,441,648 234,441,648 156,301,488 156,301,488 78,165,360 Bytes per sector 512 512 512 512 512 512 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 2.2.1 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 sectors as defined above. See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes. 2.3 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 sectors as defined above. 10 Barracuda 7200.9 Serial ATA Product Manual, Rev. C