Seagate ST31000340NS, ST3250310NS, ST3500320NS, ST3750330NS 2.2 Formatted capacity , 2.3 Default logical geometry

8 Barracuda ES.2 Serial ATA Product Ma nual, Rev. A
2.2 Formatted capacity
*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 48-
bit addressing support of drives with capacities over 137 Gbytes.
2.3 Default logical geometry
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.
Model
Formatted
capacity*
Guaranteed
sectors Bytes per sector
ST31000340NS 1000 Gbytes 1,953,525,168
512
ST3750330NS 750 Gbytes 1,465,149,168
ST3500320NS 500 Gbytes 976,773,168
ST3250310NS 250 Gbytes 488,397,168
Cylinders Read/write heads Sectors per track
16,383 16 63