Maxtor STM3160815AS, STM3160215AS manual Formatted capacity, Default logical geometry, LBA mode

2.2Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector
STM3500630AS	500 Gbytes	976,773,168	512
STM3320620AS	320 Gbytes	625,142,448	512
STM3320820AS	320 Gbytes	625,142,448	512
STM3250824AS	250 Gbytes	488,397,168	512
STM3250820AS	250 Gbytes	488,397,168	512
STM3250310AS	250 Gbytes	488,397,168	512
STM3160815AS	160 Gbytes	312,581,808	512
STM3160215AS	160 Gbytes	312,581,808	512
STM380815AS	80 Gbytes	156,301,488	512
STM380215AS	80 Gbytes	156,301,488	512
STM340215AS	40 Gbytes	78,165,360	512

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

2.2.1LBA 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 addressing support of drives with capacities over 137 Gbytes.

2.3Default 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.

16 DiamondMax 21 Serial ATA Product Manual, Rev. C