HP 6545C (US/CAN), 6744 (US) Formatted capacity, Default logical geometry, Physical organization

Page 13

U10 Family Product Manual, Rev. A

5

1.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the ST320423A, ST315323A and the ST310212A.

1.1 Formatted capacity

Drive Model

Guaranteed Mbytes

Guaranteed

Bytes per

 

(1 Mbyte = 106 bytes)

sectors

sector

 

 

 

 

 

 

 

 

ST320423A

20,485

40,011,300

512

 

 

 

 

ST315323A

15,364

30,008,475

512

 

 

 

 

ST310212A

10,242

20,005,650

512

 

 

 

 

1.1.1 Default logical geometry

CHS Mode

Cylinders

Read/Write heads

Sectors per track

 

 

 

 

 

 

 

 

ST320423A

16,383

16

63

 

 

 

 

ST315323A

16,383

16

63

 

 

 

 

ST310212A

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.

1.2 Physical organization

Drive Model

Read/Write heads (GMR)

Number of discs

 

 

 

 

 

 

ST320423A

4

2

 

 

 

ST315323A

3

2

 

 

 

ST310212A

2

1

 

 

 

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Contents
Product Manual Page Product Manual Page Contents ATA interface Configuring and mounting the driveFigures U10 Family Product Manual, Rev. a Introduction Specification summary table Drive Specification ST320423A Contact start-stop cycles 25C 40% relative humidity Formatted capacity Default logical geometryPhysical organization Drive Specification ST320423A, ST315323A ST310212A Physical characteristicsRecording and interface technology Seek time Power specificationsStart/stop times Power consumption Typical current profile Power Mode Typical Watts Typical Amps RMS 12VConducted noise Power-management modesVoltage tolerance Temperature gradient Environmental tolerances Ambient temperatureSleep mode Idle and Standby timersHumidity 3.1 Relative Humidity 3.2 Wet bulb temperatureAltitude ShockNonoperating vibration Operating vibrationDrive acoustics Electromagnetic susceptibility Agency certification Safety certificationReliability Electromagnetic compatibilityAustralian CE-Tick N176 FCC verificationU10 Family Product Manual, Rev. a Handling and static-discharge precautions Configuring and mounting the driveDrive as master with a non-ATA-compatible slave Jumper settings Master/slave configurationUltra ATA/66 cable Cable-select optionDrive mounting Mounting dimensions-top, side and end view ATA interface ATA interface signals and connector pinsO pins and supported ATA signals Command name Command code in hex ATA-standard commands Supported ATA commandsCommand name Identify Drive commandATA-standard power-management commands ATA-standard security commands0C5AH Word DescriptionXx07H Word Description ValueXx1FH Description if bit is set to Bit Word 0CH Set Features commandCode in Features A.R.T. Command Register 4 S.M.A.R.T. commandsA.R.T. Command Register Page
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