Datasheet

Barracuda SATA Product Manual, Rev. A 13
www.seagate.com
Drive Specifications
2.2 Formatted capacity
Model
Formatted
capacity*
Guaranteed
sectors
ST500DM002 500GB 976,773,168
4096K
ST320DM000 320GB 625,142,448
ST250DM000 250GB 488,397,168
*One GB 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 137GB.
2.3 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.
Bytes per sector