Seagate SV35.4 2.2 Formatted capacity , 2.3 Default logical geometry , 2.4 Recording and interface technology

6 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/inch2 avg) 215 Gbits/in2 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