Manuals / Seagate / Computer Equipment / Computer Drive

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

Product Manual ST940813AM ST940814AM ST930813AM ST930814AM ST920813AM ST920814AMEE25 Series August 3.0 Configuring and mounting the drive Contents1.0 Introduction 2.0 Drive specifications 5.0 Seagate Technology support servicesEE25 Series Product Manual, Rev. E List of Figures EE25 Series Product Manual, Rev. E 1.0 Introduction EE25 Series Product Manual, Rev. E 2.0 Drive specifications 2.1 Specification summarySpecifications for 40 and 30 Gbyte models EE25 Series Product Manual, Rev. E5.0 Gs 0 to peak, 5-500 Hz X, Y, Z axis 0, 22, 45 angles EE25 Series Product Manual, Rev. E1.0 G 200 - 500 Hz following web pageSpecifications for 20 Gbyte models 5% to 90% operatingST920813AM Drive specificationEE25 Series Product Manual, Rev. E ST920814AM2.4 Physical organization 2.3 Default logical geometry2.2 Formatted capacity LBA mode2.7 Seek time 2.6 Physical characteristics2.5 Recording and interface technology SpecificationStart/stop times EE25 Series Product Manual, Rev. ESpinup power 2.9 Power specifications2.9.1 Power consumption Read/write power and current2.9.3 Voltage tolerance 2.9.1.1 Typical current profile2.9.2 Conducted noise Figure 1. Typical 5V startup and operation current profileActive mode 2.9.4 Power-management modesIdle and Standby timers Idle mode2.10.2 Temperature gradient 2.10 Environmental specifications2.10.1 Ambient temperature 2.10.3.2 Wet bulb temperature2.11.1.2 Nonoperating shock 2.11.1 Shock2.11.1.1 Operating shock Figure 2. Temperature vs. altitude capability2.11.2.1 Operating vibration 2.12 Acoustics2.11.2 Vibration 2.11.2.2 Nonoperating vibrationReliability 2.13 Electromagnetic immunity2.14 2.15.2 Electromagnetic compatibility 2.15.1 Safety certification2.15 Agency certification Korean RRL2.16.1 European Union Restriction of Hazardous Substances RoHS 2.16 Environmental protection2.17 Corrosive environment EE25 Series Product Manual, Rev. E 3.2 Jumper settings 3.0 Configuring and mounting the drive3.1 Handling and static discharge precautions 3.2.1 Master/slave configuration3.3 Drive mounting 3.2.2 Cable-select option4.1 ATA interface signals and connector pins 4.0 ATA interfaceCommand code in hex 4.1.1 Supported ATA commandsCommand name ATA-standard commandsEE25 Series Product Manual, Rev. E 9AH, FAH, FBH4.1.2 Identify Device command xx07H xxxxHxxxxH xx3FHEE25 Series Product Manual, Rev. E xxxxH4.1.3 Set Features command Disable write cacheEE25 Series Product Manual, Rev. E Warranty Support 5.0 Seagate Technology support servicesSeagate Service Centers InternetEurope, the Middle East and Africa Support Services Customer Service OperationsUSA/Canada/Latin America support services Asia/Pacific Support ServicesNumerics IndexPage Page EE25 Series Product Manual, Rev. E Page Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA