Seagate ST980817AM manual Formatted capacity, Default logical geometry, LBA mode, Model, Cylinders

2.2Formatted capacity

Model	Formatted capacity*	Guaranteed sectors	Bytes per sector
ST980817AM	80 Gbytes	156,301,488	512
ST980818AM	80 Gbytes	156,301,488	512
ST980817SM	80 Gbytes	156,301,488	512
ST980818SM	80 Gbytes	156,301,488	512
ST960817AM	60 Gbytes	117,210,240	512
ST960818AM	60 Gbytes	117,210,240	512
ST960817SM	60 Gbytes	117,210,240	512
ST960818SM	60 Gbytes	117,210,240	512
ST940817AM	40 Gbytes	78,140,160	512
ST940818AM	40 Gbytes	78,140,160	512
ST940817SM	40 Gbytes	78,140,160	512
ST940818SM	40 Gbytes	78,140,160	512
ST930817AM	30 Gbytes	58,605,120	512
ST930818AM	30 Gbytes	58,605,120	512
ST930817SM	30 Gbytes	58,605,120	512
ST930818SM	30 Gbytes	58,605,120	512

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.

2.3Default 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.

12 EE25.2 Series Product Manual, Rev. E