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6 Constellation ES Serial ATA Product Manual, Rev. G
3.2 Formatted capacity
Model
Formatted
capacity*
Guaranteed
sectors
Bytes per sector
ST32000644NS 2TB 3,907,029,168
512ST31000524NS 1TB 1,953,525,168
ST3500514NS 500GB 976,773,168
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
3.2.1 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.
3.3 Default logical geometry
Cylinders Read/write heads Sectors per track
16,383 16 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.
3.4 Recording and interface technology
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density, KBPI (Kb/in max) 1421
Track density, KTPI (ktracks/in avg) 240
Areal density (Gb/in
2
avg) 347
Spindle speed (RPM) (± 0.2%) 7200
Internal data transfer rate (Mb/s max) 1300
Sustained data transfer rate (MB/s max) 140
I/O data-transfer rate (MB/s max) 300 (Ultra DMA mode 5)