Seagate Barracuda ST3160021AS - Manual (Page 13)

Barracuda 7200.7 Serial ATA Product Manual, Rev. N 5
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
**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
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
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, 40% relative humidity)
50,000
Supports Hotplug operation per SATA II
specification
Yes
Model Formatted capacity* Guaranteed sectors Bytes per sector
ST3200822AS 200 Gbytes 390,721,968 512
ST3160827AS
ST3160023AS
ST3160021AS
160 Gbytes 312,581,808 512
ST3120827AS
ST3120026AS
ST3120022AS
120 Gbytes 234,441,648 512
ST380817AS
ST380013AS
ST380011AS
80 Gbytes 156,301,488 512
ST340111AS
ST340014AS
40 Gbytes 78,165,360 512
Cylinders Read/write heads Sectors per track
16,383 16 63
Table 2: Drive specifications
Drive specification ST3200822AS
ST3160827AS
ST3160023AS
ST3160021AS ST3120827AS
ST3120026AS
ST3120022AS ST380817AS
ST380013AS
ST380011AS
ST340111AS
ST340014AS