Seagate ST32000645SS, ST31000524NS manual Formatted capacity, Default logical geometry, LBA mode

3.2Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector
ST32000644NS	2TB	3,907,029,168
ST31000524NS	1TB	1,953,525,168	512
ST3500514NS	500GB	976,773,168

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

3.2.1LBA 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 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.

3.3Default 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.

3.4Recording and interface technology

Interface	Serial ATA (SATA)
Recording method	Perpendicular
Recording density, KBPI (Kb/in max)	1421
Track density, KTPI (ktracks/in avg)	240
Areal density (Gb/in2 avg)	347
Spindle speed (RPM) (± 0.2%)	7200
Internal data transfer rate (Mb/s max)	1300
Sustained data transfer rate (MB/s max)	140
I/O data-transfer rate (MB/s max)	300 (Ultra DMA mode 5)

6 Constellation ES Serial ATA Product Manual, Rev. G