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Constellation CS Serial ATA Product Manual, Rev. D 6
www.seagate.com
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 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.
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
2.5 Physical characteristics
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density, KBPI (Kb/in max) 1807
Track density, KTPI (ktracks/in avg) 340
Areal density (Gb/in
2
avg) 625
Spindle speed (RPM) (± 0.2%) 7200
Internal data transfer rate (Mb/s max) 2147
Sustained data transfer rate (MB/s) 150 to 180
I/O data-transfer rate (MB/s max) 600 (Ultra DMA mode 5)
Weight: (maximum)
3TB models 626g (1.38 lb)
2TB models 535g (1.18 lb)
1TB models 400g (0.88lb)
Cache buffer 64MB (64,768KB)