Formatted Capacity; Lba Mode; Default Logical Geometry - Maxtor DiamondMax 21 Manual

2.2

Formatted capacity

Formatted
Model capacity*
STM3320620AS 320 Gbytes
STM3320820AS 320 Gbytes
STM3250824AS 250 Gbytes
STM3250820AS 250 Gbytes
STM3160815AS 160 Gbytes
STM3160215AS 160 Gbytes
STM380815AS 80 Gbytes
STM340215AS 40 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.
14
Guaranteed
sectors
625,142,448
625,142,448
488,397,168
488,397,168
312,581,808
312,581,808
156,301,488
78,165,360
Sectors per track
63
DiamondMax 21 Serial ATA Product Manual, Rev. A
Bytes per sector
512
512
512
512
512
512
512
512