Formatted Capacity; Lba Mode; Default Logical Geometry - Seagate ST3500630AS Product Manual

2.2

Formatted capacity

Model
ST3750840A
ST3750640A
ST3500830A
ST3500630A
ST3400820A
ST3400620A
ST3320820A
ST3320620A
ST3300820A
ST3300620A
ST3250820A
ST3200820A
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environ-
ment 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 4.1.2, "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
10
Formatted Guaranteed
capacity* sectors
750 Gbytes 1,465,149,168
750 Gbytes 1,465,149,168
500 Gbytes 976,773,168
500 Gbytes 976,773,168
400 Gbytes 781,422,768
400 Gbytes 781,422,768
320 Gbytes 625,142,448
320 Gbytes 625,142,448
300 Gbytes 586,072,368
300 Gbytes 586,072,368
250 Gbytes 488,397,168
200 Gbytes 390,721,968
16
Bytes per sector
512
512
512
512
512
512
512
512
512
512
512
512
Sectors per track
63
Barracuda 7200.10 PATA Product Manual, Rev. A