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

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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		2	1
	ST9160301AS and ST9160314ASG
	ST9120315AS, ST9120315ASG, ST980313AS and		1	1
	ST980313ASG		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

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Contents Momentus 5400.6 Sata Page Contents Momentus 5400.6 Sata Product Manual, Rev. E List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tableDrive specifications for 500, 400 and 320 GB models Revision 2.6 specification See notes after Table Drive specifications for 250 and 160 GB models Drive specifications for 250 and 160 GB models Drive specifications for 120 and 80 GB models Formatted capacity Formatted Guaranteed Bytes per Model Capacity SectorsRecording and interface technology Default logical geometryLBA mode Physical organizationTypical seek times Physical characteristicsSeek time Start/stop timesPower specifications Voltage tolerance Typical current profileDeferred spinup Conducted noiseIdle mode Power-management modesPower management modes Active modeEnvironmental specifications Vibration ShockOperating shock Nonoperating shockTest for Prominent Discrete Tones PDTs Drive A-weighted Sound Power Levels SWL, BAAcoustics Electromagnetic immunityFree Fall Protection feature Measurement type SpecificationReliability Korean RRL Safety certificationAgency certification Electromagnetic compatibilityFCC verification China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment European Union Restriction of Hazardous Substances RoHSHandling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveTop cover stiffness/deflection Drive mountingMeasurements shown in are in inches Segment Pin Function Definition Serial ATA connector pin definitionsSignal Serial ATA Sata interfaceP10 Ground 2nd mate P11 Reserved Pin Function DefinitionCommand name Command code in hex ATA-standard commands Supported ATA commandsATA-standard security commands Command name Command code in hexWord Description Value Identify Device commandXxxxH Description if bit is set to Bit Momentus 5400.6 Sata Product Manual, Rev. E Set Features command values Set Features command3 S.M.A.R.T. commands M.A.R.T. commandsCode in features register A.R.T. command Seagate Technology support services Presales SupportTechnical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index Page Page Momentus 5400.6 Sata Product Manual, Rev. E Page Seagate Technology LLC

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