Datasheet

Barracuda 7200.8 Serial ATA Product Manual, Rev. B 5
*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
2.2.1 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 geometry
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.
Contact start-stop cycles
(25°C, 50% relative humidity)
50,000
Supports Hotplug operation per SATA II specification Yes
Model Formatted capacity Guaranteed sectors Bytes per sector
ST3400832AS 400 Gbytes 781,422,768 512
ST3300831AS 300 Gbytes 586,072,368 512
ST3250823AS 250 Gbytes 488,397,168 512
ST3200826AS 200 Gbytes 390,721,968 512
Cylinders Read/write heads Sectors per track
16,383 16 63
Table 1: Drive specifications
Drive specification ST3400832AS ST3300831AS ST3250823AS ST3200826AS