Formatted Capacity; Lba Mode; Default Logical Geometry - Seagate BARRACUDA 7200.10 ST3400620AS Product Manual

2.2

Formatted capacity

Formatted
Model
capacity*
ST3750640AS
750 Gbytes
ST3750840AS
ST3500630AS
500 Gbytes
ST3500830AS
ST3400620AS
400 Gbytes
ST3400820AS
ST3320620AS
320 Gbytes
ST3320820AS
ST3300620AS
300 Gbytes
ST3300820AS
ST3250620AS
ST3250820AS
250 Gbytes
ST3250410AS
ST3250310AS
ST3200820AS 200 Gbytes
ST3160815AS
160 Gbytes
ST3160215AS
ST3120815AS
120 Gbytes
ST3120215AS
ST380815AS
80 Gbytes
ST380215AS
ST340815AS
40 Gbytes
ST340215AS
*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.
26
Guaranteed
sectors
1,465,149,168
976,773,168
781,422,768
625,142,448
586,072,368
488,397,168
390,721,968
312,581,808
234,441,648
156,301,488
78,165,360
Sectors per track
63
Barracuda 7200.10 Serial ATA Product Manual, Rev. J
Bytes per sector
512
512
512
512
512
512
512
512
512
512
512