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6 Barracuda Serial ATA V Product Manual, Rev. B
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T.
specification, which may increase acoustic and power to operational levels.
2.2 Formatted capacity
2.3 Default logical geometry
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consec-
utively numbered from 0 to n–1, where n is the number of guaranteed sectors
as defined above.
Drive model Formatted Gbytes
Guaranteed
sectors
Bytes per
sector
ST3120023AS 120 234,441,648 512
ST380023AS 80 156,301,488 512
ST360015AS 60 117,231,408 512
Cylinders Read/write heads Sectors per track
ST3120023AS 16,383 16 63
ST380023AS 16,383 16 63
ST360015AS 16,383 16 63