Seagate ST32000641AS manual Formatted capacity, Default logical geometry, LBA mode

2.1Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector
ST32000641AS	2000GB	3,907,029,168	512

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.

2.1.1LBA 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 48-bit address- ing support of drives with capacities over 137GB.

2.2Default 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 sectors as defined above.

2.3Recording and interface technology

Interface	Serial ATA (SATA)
Recording method	Perpendicular
Recording density (kbits/inch max)	1421kb/in
Track density (ktracks/inch avg)	240 ktracks/in
Areal density (Gbits/inch2 avg)	347Gb/in2
Spindle speed (RPM)	7200 + 0.2%
Internal data transfer rate (Mb/s max)	1300Mb/s
Sustained data transfer rate (MB/s max)	138MB/s
I/O data-transfer rate (MB/s max)	600MB/s

Barracuda XT Series SATA Product Manual, Rev. C 5