Seagate ST3400820AS ユーザーズマニュアル
26
Barracuda 7200.10 Serial ATA Product Manual, Rev. K
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.
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.
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.
where n is the number of guaranteed sectors as defined above.
Model
Formatted
capacity*
Guaranteed
sectors
Bytes per sector
ST3750640AS
ST3750840AS
750 Gbytes
1,465,149,168
512
ST3500630AS
ST3500830AS
500 Gbytes
976,773,168
512
ST3400620AS
ST3400820AS
400 Gbytes
781,422,768
512
ST3320620AS
ST3320820AS
320 Gbytes
625,142,448
512
ST3300620AS
ST3300820AS
300 Gbytes
586,072,368
512
ST3250620AS
ST3250820AS
ST3250410AS
ST3250310AS
250 Gbytes
488,397,168
512
ST3200820AS
200 Gbytes
390,721,968
512
ST3160815AS
ST3160310AS
ST3160215AS
160 Gbytes
312,581,808
512
ST3120815AS
ST3120215AS
120 Gbytes
234,441,648
512
ST380815AS
ST380215AS
80 Gbytes
156,301,488
512
ST340815AS
ST340215AS
40 Gbytes
78,165,360
512
Cylinders
Read/write heads
Sectors per track
16,383
16
63