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2 formatted capacity, 1 lba mode, 3 default logical geometry – Seagate SV35.4 User Manual

Page 12: 4 recording and interface technology

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SV35.4 Series SATA Product Manual, Rev. B

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 the drive 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

LBA mode

When addressing the drive 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.

2.4

Recording and interface technology

Model

Formatted

capacity*

Guaranteed

sectors

Bytes per sector

ST3320410SV

320 Gbytes

625,142,448

512

Cylinders

Read/write heads

Sectors per track

16,383

16

63

320 GB models

Interface

Serial ATA (SATA)

Recording method

Perpendicular

Recording density (kbits/inch max)

1,242 kbits/in max

Track density (ktracks/inch avg)

173 ktracks/in avg

Areal density (Gbits/inch

2

avg)

215 Gbits/in

2

avg

Internal data transfer rate (Mbits/sec max)

1,201 Mbits/sec max

Sustained data transfer rate (Mbytes/sec max)

90

I/O data-transfer rate (Mbytes/sec max)

300