Formatted Capacity; Lba Mode; Default Logical Geometry - Seagate Barracuda 7200.12 ST3320418AS Product Manual

2.1

Formatted capacity

Formatted
Model
capacity*
ST31000528AS 1000 Gbytes
ST3750528AS 750 Gbytes
ST3500418AS
500 Gbytes
ST3500410AS
ST3320418AS 320 Gbytes
ST3250318AS 250 Gbytes
ST3160318AS 160 Gbytes
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
2.1.1

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.
2.2

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.
10
Guaranteed
Bytes per sector
sectors
1,953,525,168
1,465,149,168
976,773,168
625,142,448
488,397,168
312,581,808
Sectors per track
63
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