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Seagate ST930814AM Formatted capacity, Default logical geometry, Physical organization, LBA mode

Models: ST940813AM ST920814AM ST920813AM ST940814AM ST930813AM ST930814AM

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2.2Formatted capacity

Model	Formatted capacity*	Guaranteed sectors	Bytes per sector

ST940813AM	40 Gbytes	78,140,160	512

ST940814AM	40 Gbytes	78,140,160	512

ST930813AM	30 Gbytes	58,605,120	512

ST930814AM	30 Gbytes	58,605,120	512

ST920813AM	20 Gbytes	39,070,080	512

ST920814AM	20 Gbytes	39,070,080	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

ST940813AM	2	1

ST940814AM	2	1

ST930813AM	2	1

ST930814AM	2	1

ST920813AM	1	1

ST920814AM	1	1

8	EE25 Series Product Manual, Rev. E

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Seagate ST930814AM, ST940813AM, ST940814AM Formatted capacity, Default logical geometry, Physical organization, LBA mode

Contents

EE25 Series Page Contents EE25 Series Product Manual, Rev. E List of Figures EE25 Series Product Manual, Rev. E Introduction EE25 Series Product Manual, Rev. E Drive specifications Specification summary Specifications for 40 and 30 Gbyte models Aftermarket Vibration, nonoperating Specifications for 20 Gbyte models Drive specification ST920813AM ST920814AM EE25 Series Product Manual, Rev. E Formatted capacity Default logical geometryLBA mode Physical organization Recording and interface technology Physical characteristicsTechnology Specification Seek time Msec Typical Max Read seek times vs temperature 85C 25C 20C 30CStart/stop times 85C 25C 20C 30C Power specifications Voltage tolerance Typical current profileConducted noise Idle mode Power-management modesActive mode Sleep mode Environmental specifications Altitude Nonoperating shock ShockOperating shock Vibration Acoustic mode Idle Normal Seek Performance SeekAcoustics Operating vibration Reliability Measurement type SpecificationElectromagnetic immunity Test Description Performance Reference Level Standard Agency certification European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment Page Jumper settings Configuring and mounting the driveHandling and static discharge precautions Master/slave configuration Drive mounting Cable-select option Cable Connector Signal Name Conductor Contact ATA interface signals and connector pinsSignal Name Connector Cable Contact Conductor ATA interface Supported ATA commands Command name Command code in hex ATA-standard commands ATA-standard security commands Command name Command code in hexATA-standard power-management commands Identify Device command Word Description Value Xx07H Description if bit is set to Bit Word Bit Word Set Features command 0CH EE25 Series Product Manual, Rev. E Presales Support Seagate Technology support servicesInternet Technical Support Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index NumericsPage Page EE25 Series Product Manual, Rev. E Page Seagate Technology LLC