2 formatted capacity, 1 lba mode, 3 default logical geometry – Seagate SV35.5 SERIES SATA ST31000525SV User Manual

Page 14: 4 recording and interface technology, Formatted capacity 2.2.1, Lba mode, Default logical geometry, Recording and interface technology

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SV35.5 Series SATA Product Manual, Rev. C

2.2

Formatted capacity


Model

Formatted

capacity*

Guaranteed

sectors


Bytes per sector

ST31000525SV

1 Tbyte

1,953,525,168

512

ST3500410SV

500 Gbytes

976,773,168

ST3250311SV

250 Gbytes

488,397,168

*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

Cylinders

Read/write heads

Sectors per track

16,383

16

63

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

All models

Interface

Serial ATA (SATA)

Recording method

Perpendicular

Recording density (kbits/inch max)

1,474 kbits/in max

Track density (ktracks/inch avg)

236 ktracks/in avg

Areal density (Gbits/inch

2

avg)

345 Gbits/in

2

avg

Internal data transfer rate (Mbits/sec max)

1,628 Mbits/sec max

Sustained data transfer rate (Mbytes/sec max)

140

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

300

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