Seagate ST9120826A Formatted capacity, Default logical geometry, Physical organization, LBA mode

Table 1:	Specifications
Drive specification		ST9120826A	ST9100826A	ST980821A	ST960814A	ST940811A
		5 years on distribution units.
		To determine the warranty for a specific drive, use a web browser to access the following web
		page:
Warranty		www.seagate.com/support/service/
		From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive
		serial number, model number (or part number) and country of purchase. The system will dis-
		play the warranty information for your drive.

*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.

***Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption.

2.2Formatted capacity

Model	Formatted capacity*	Guaranteed sectors	Bytes per sector
ST9120826A	120 Gbytes	234,441,648	512
ST9100826A	100 Gbytes	195,371,568	512
ST980821A	80 Gbytes	156,301,488	512
ST960814A	60 Gbytes	117,210,240	512
ST940811A	40 Gbytes	78,140,160	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.

2.4Physical organization

Model	Read/write heads	Number of discs
ST9120826A	4	2
ST9100826A	3	2
ST980821A	3	2
ST960814A	2	1
ST940811A	2	1

Momentus 5400 FDE Product Manual, Rev. C 7