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2 formatted capacity, 1 lba mode, 3 default logical geometry – Seagate CONSTELLATION ES SERIAL ATA ST31000524NS User Manual

Page 12: 4 recording and interface technology, Formatted capacity 3.2.1, Lba mode, Default logical geometry, Recording and interface technology

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Constellation ES Serial ATA Product Manual, Rev. F

3.2

Formatted capacity


Model

Formatted

capacity*

Guaranteed

sectors


Bytes per sector

ST32000644NS

2TB

3,907,029,168

512

ST31000524NS

1TB

1,953,525,168

ST3500514NS

500GB

976,773,168

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

and formatting.

3.2.1

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 5.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-
bit addressing support of drives with capacities over 137GB.

3.3

Default logical geometry

Cylinders

Read/write heads

Sectors per track

16,383

16

63

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.

3.4

Recording and interface technology

Interface

Serial ATA (SATA)

Recording method

Perpendicular

Recording density, KBPI (Kb/in max)

1,421

Track density, KTPI (ktracks/in avg)

240

Areal density (Gb/in

2

avg)

347

Spindle speed (RPM) (± 0.2%)

7200

Internal data transfer rate (Mb/s max)

1300

Sustained data transfer rate (MB/s max)

140

I/O data-transfer rate (MB/s max)

300 (Ultra DMA mode 5)

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