Текст страницы
www.seagate.com
Drive Specifications
2.2
Formatted capacity
Model
Formatted capacity*
Guaranteed sectors
Bytes per sector
4TB
4000GB
7,814,037,168
4096
3TB
3000GB
5,860,533,168
*One GB equals one billion bytes and 1TB equals one trillion bytes when referring to hard drive capacity. Accessible capacity may vary
depending on operating environment and formatting.
2.2.1
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 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 137GB.
2.3
Default logical geometry
•
Cylinders: 16,383
•
Read/write heads: 16
•
Sectors per track: 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.
2.4
Recording and interface technology
Models
3TB
4TB
Interface
SATA
Recording method
CMR
Recording density (kBPI)
2448
Track density (ktracks/inch avg)
480
Areal density (Gb/in2)
855
1175
Interface transfer rate (MB/s)
600
Data transfer rate (MB/s)
up to 180
Seagate SkyHawk Product Manual, Rev. A
10