Formatted Capacity; Default Logical Geometry; Lba Mode - Seagate ST31000340NS Product Manual

2.2

Formatted capacity

Formatted
Model capacity*
ST31000340NS 1000 Gbytes
ST3750330NS 750 Gbytes
ST3500320NS 500 Gbytes
ST3250310NS 250 Gbytes
*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

Cylinders Read/write heads
16,383 16
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.
8
Guaranteed
sectors
1,953,525,168
1,465,149,168
976,773,168
488,397,168
Sectors per track
63
Barracuda ES.2 Serial ATA Product Manual, Rev. A
Bytes per sector
512