Seagate ST36421A, ST32112A, ST38421A, ST34311A manual Specification summary table

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U4 Family Product Manual, Rev. D

Specification summary table

The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.

Drive Specification

ST32112A

ST34311A

 

ST36421A

 

ST38421A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Guaranteed Mbytes

 

 

 

 

 

 

(×106 bytes)

2,160

4,320

 

6,448

 

8,440

Guaranteed sectors

4,225,536

8,452,080

 

12,596,850

 

16,498,944

 

 

 

 

 

 

Bytes per sector

 

512

 

 

 

 

 

 

 

 

Default sectors per track

 

 

63

 

 

 

 

 

 

 

 

 

Default read/write heads

16

15

 

15

 

16

 

 

 

 

 

 

 

Default cylinders

4,192

8,944

 

13,330

 

16,368

 

 

 

 

 

 

 

Physical read/write

 

 

 

 

 

 

heads

1

2

 

3

 

4

 

 

 

 

 

 

 

Discs

1

1

 

2

 

2

 

 

 

 

 

 

 

Recording density

 

 

 

 

 

 

BPI (bits/inch max)

 

241,000

 

 

 

 

 

 

 

 

 

Track density

 

 

 

 

 

 

TPI (tracks/inch)

 

13,100

 

 

 

 

 

 

 

 

 

Areal density

 

 

 

 

 

 

(Mbits/inch2 max)

 

3,179

 

 

Spindle speed (RPM)

 

5,400

 

 

 

 

 

 

 

 

 

Internal data-transfer

 

 

 

 

 

 

rate (Mbits/sec max)

 

206

 

 

 

 

 

 

 

 

 

I/O data-transfer rate

 

 

 

 

 

 

(Mbytes/sec max)

 

66.6

 

 

 

 

 

 

ATA data-transfer modes

 

PIO modes 0–4

 

supported

 

Multiword DMA modes 0–2

 

 

 

Ultra DMA modes 0–4

 

 

 

 

 

 

Cache buffer (Kbytes)

 

256

 

 

 

 

 

 

 

Height (mm max)

 

26.1

 

 

 

 

 

 

 

Width (mm max)

 

102

 

 

 

 

 

 

 

Length (mm max)

 

147.0

 

 

 

 

 

 

Weight (typical)

 

580 grams (1.2 lb)

 

 

 

 

 

 

 

 

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Contents Product Manual Page Product Manual Page Contents Configuring and mounting the drive ATA interfaceFigures Seagate Connfidential Review Draft not for DistributionSeagate Confidential Review Draft not for Distribution Introduction Specification summary table Track-to-track seek time Msec typical Vibration, nonoperating Formatted capacity Default logical geometryLBA Mode Physical organizationRecording and interface technology Physical characteristicsDrive Specification ST38421A, ST36421A ST34311A, ST32112A Seek timeSpinup power Power specificationsPower consumption Start/stop timesOperating power and current Seek ModeRead/Write power and current Idle mode powerTypical current profile Power Mode Typical Watts Typical Amps RMS 12VCurrent amps Time seconds Conducted noise Power-management modesVoltage tolerance Humidity Environmental tolerances Ambient temperatureTemperature gradient Relative HumidityShock Wet bulb temperatureAltitude Operating shockNonoperating vibration Operating vibrationDrive acoustics Reliability Agency certification Safety certificationElectromagnetic susceptibility Electromagnetic compatibilityFCC verification Australian C-TickU4 Family Product Manual, Rev. D Configuring and mounting the drive Handling and static-discharge precautionsJumper settings Master/slave configuration Master/slave jumper settingsUltra ATA/66 cable Important mounting precautionsCable-select option Drive mountingMounting dimensions-top, side and end view ATA interface signals and connector pins ATA interfaceO pins and supported ATA signals ATA Interface commands Supported ATA commands Command name Command code in hex ATA-standard commandsATA-standard power-management commands Identify Drive commandCommand name ATA-standard security commandsWord Description 27-46 Drive model number 40 Ascii char Multiword DMA active and modes Description if bit is set to Bit Word Set Features command 0CH4 S.M.A.R.T. commands Code in Features Register A.R.T. CommandPage U4 Family Product Manual, Rev. D U4 Family Product Manual, Rev. D
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