Seagate ST34555N/W manual Drive characteristics, Rpm

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Hawk 4XL Installation Guide, Rev. A		15
Table 1. Drive characteristics
Interface	Ultra SCSI [1]
Capacity
Formatted [2]	4.55 Gbyte
Unformatted	6.5 Gbyte
Recording
Cylinders (user)	6,311
Read/write data heads	8
Access time [3]
Average read	10.1 msec
Average write	11.2 msec
Disk rotation
RPM	7,200 r/min
Average latency	4.17 msec
Internal transfer rate
(variable with zone)	92–140 Mbits/sec
Maximum synchronous SCSI transfer rate
N model	20 Mbytes/sec
W model	40 Mbytes/sec
Multi-segmented cache	480 Kbytes

[1]Can also be operated according to SCSI-1 and SCSI-2 protocols. Referred to also as “SCSI Fast-20.”

[2]Standard factory units are formatted 512 data bytes per sector with sparing equivalent to 118 spare sectors per six cylinder region. Spares are located at the end of each sparing region.

[3]Includes controller overhead.

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Contents

Hawk 4XL Disc Drive ST34555N/W Installation Guide Contents Electrostatic discharge protection PrefaceImportant safety information and precautions Page Wichtige Sicherheitshinweise Page Hawk 4XL Installation Guide, Rev. a Electromagnetic compliance Regulatory agency complianceElectromagnetic susceptibility Australian C-Tick Electromagnetic compliance for the European UnionOnline services Seagate technical support servicesSeagate CompuServe forum SeaFAX FAX servicesSeagate technical support Direct-support servicesManufacturer’s representatives Customer service centersGeneral description RPM Drive characteristicsSingle-ended DC power requirements AmpsST34555N/W Dimensions of the drive Drive models General informationScsi ID jumpers Drive termination Circuits and data path widths Terminator powerCable characteristics for single-ended circuits Fifty pin I/O connection to drive N model Multiple drive connection to host adapter Multiple-drive connection to host adapter Providing adequate cooling Kühlung des Systems Suggested air flow Abbildung 4. Empfohlener Luftstromverlauf Installation des Laufwerkes und Anschluß der Kabel Mounting the drive and connecting cablesHawk 4XL Installation Guide, Rev. a DC power connector Abbildung 5. Gleichstromanschluß Hinweis Page Mounting configuration dimensions Quick reference desktop system notes Formatting the driveSetting the Scsi ID on model N drives Setting the Scsi ID jumpersTerminating the drive Terminating the driveSetting terminator power jumpers Additional jumper options Other applicable jumper optionsSetting the Scsi ID on model W drives Host Alternate Enable Scsi terminator Disable Scsi terminator Model only Terminator power Other option jumpers are available as illustrated below