Seagate ST43400N/ND user manual Characteristics Conditions Specifications

Page 9

General description

 

 

3

 

 

 

 

continued from previous page

 

 

 

Characteristics

Conditions

Specifications

SCSI transfer rate, burst

 

10.0 Mbytes/sec max

Seek time

 

 

 

(time required to move heads

 

 

 

to a different track address—

 

 

 

excluding SCSI I/O overhead)

 

 

 

 

Typical full

23.5 msec

 

Typical average

11.5 msec

 

Typical one-track

1.7 msec

Typical access times

 

Write

Read

 

Typical single track

 

 

 

seek msec

1.7

0.9

 

Average seek msec

11.5

10.5

 

Maximum seek msec

23.5

22.5

Latency

 

 

 

(time required to reach a

 

 

 

particular track address after

 

 

 

head positioning is complete)

 

 

 

 

Average

5.55 msec

 

 

(disc rotation

 

 

at 5400 RPM)

 

Maximum

11.17 msec

 

 

(disc rotation

 

 

at 5373 RPM)

Start time**

 

30 sec max

Stop time

 

30 sec max

**Following the power sequence delay, once DC power is applied and start conditions are present.

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Contents Elite Disc Drive ST43400N/ND Contents Electrostatic discharge protection PrefaceImportant safety information and precautions ST43400N/ND User’s Manual SeaFAX 408 Technical support servicesSeaFONE 408 SeaBOARDST43400N/ND disc drive General descriptionSize Dimensions Characteristics Conditions Specifications Page Drive functional block diagram Installation Site requirementsEnvironmental requirements Airflow requirements Suggested airflow Mounting orientations Space requirementsDimensions of the drive and power supply Power requirements Interface requirements Grounding requirementsScsi Unshielded single-ended I/O cabling Signal Name Pin Number Unshielded differential I/O cabling Signal Name Pin Number Unpacking Unpacking, inspection, and repackingInspection RepackingSetting the control board jumpers Installation proceduresJ4A Installing the power supply Power supply installation Installing an optional bezel Attaching a bezel Mounting the drive Mounting the drive O cable attachment Connecting the system I/O cablingTerminator attachment-single-ended I/O Terminator attachment-differential I/O Grounding the systemSynchronizing the spindle System diagram for spindle syncJ4A Installation Verification Operation Switches and indicatorsSwitches and indicators Switch or Indicator Function Operating instructions Parts data Options and accessories Part Number Description Observing maintenance precautions MaintenanceRemoving and replacing a drive Arranging for depot repairPacking a drive for shipment Removing and replacing a power supplyPage Maintenance Publication Number 83327630, Rev. a