Seagate ST980313ASG, ST9500325AS Default logical geometry, Physical organization, LBA mode

2.2.1LBA 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.

2.3Default 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.

2.4	Physical organization
Drive model		Read/write heads	Number of discs
ST9500325AS, ST9500325ASG and ST9400326AS		4	2
ST9320325AS and ST9320325ASG		3	2
ST9250315AS, ST9250315ASG, ST9160314AS,		2	1
ST9160301AS and ST9160314ASG
ST9120315AS, ST9120315ASG, ST980313AS and		1	1
ST980313ASG

2.5Recording and interface technology

	ST9500325AS, ST9500325ASG, ST9400326AS,
	ST9320325AS, ST9320325ASG, ST9250315AS,
	ST9250315ASG ST9160314AS, ST9160314ASG,	ST9160301AS
	ST9120315AS, ST9120315ASG, ST980313AS,
	ST980313ASG
Interface	Serial ATA (SATA)
Recording method	Perpendicular
Recording density BPI (bits/inch avg)	1,490k	1,238k
Track density TPI (tracks/inch avg)	265k	210k
Areal density (Gbits/inch2 avg)	394	269
Spindle speed (RPM) (± 0.2%)	5,400
Maximum Internal transfer rate (Mbits/sec)	1,175
I/O data-transfer rate (Mbytes/sec max)	300
Interleave	1:1
Cache buffer	8 Mbytes (8,192 kbytes)

Momentus 5400.6 SATA Product Manual, Rev. E 9