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1 formatted capacity, 1 lba mode, 2 default logical geometry – Seagate BARRACUDA ST3750528AS User Manual

Page 18: Formatted capacity 2.1.1, Lba mode, Default logical geometry

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Barracuda 7200.12 Serial ATA Product Manual, Rev. C

2.1

Formatted capacity

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

2.1.1

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

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.

Model

Formatted

capacity*

Guaranteed

sectors

Bytes per sector

ST31000528AS

1000 Gbytes

1,953,525,168

512

ST3750528AS

750 Gbytes

1,465,149,168

ST3500418AS

ST3500410AS

500 Gbytes

976,773,168

ST3320418AS

320 Gbytes

625,142,448

ST3250318AS

250 Gbytes

488,397,168

ST3160318AS

160 Gbytes

312,581,808

Cylinders

Read/write heads

Sectors per track

16,383

16

63

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