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Barracuda 7200.8 Serial ATA Product Manual, Rev. F
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 137 Gbytes.
2.3 Default logical geo m etry 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.
Model Formatted capacity Guaranteed sectors Bytes per sector
ST3400832AS and ST3400632AS 400 Gbytes 781,422,768 512
ST3300831AS and ST3300631AS 300 Gbytes 586,072,368 512
ST3250823AS and ST3250623AS 250 Gbytes 488,397,168 512
ST3200826AS 200 Gbytes 390,721,968 512
Cylinders Read/write heads Sectors per track
16,383 16 63