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Barracuda 18 Installation Guide, Rev. C

41

N drives

N/ND drives section

Setting the SCSI ID jumpers

Use the J6 connector to set the SCSI ID (see Figure 7). To
change the SCSI ID, install jumpers on the appropriate pins as
shown in the illustration.

Figure 7.

Setting the SCSI ID on model N drives

A2 A1 A0

SCSI ID = 0

(default)

Jumper Plug

(enlarged to
show detail)

J6

Drive

Front

SCSI ID = 1

SCSI ID = 2

SCSI ID = 3

SCSI ID = 4

SCSI ID = 5

SCSI ID = 6

SCSI ID = 7

L

E

D

R

E
S

R

E
S

Reserved

Pin 1

«
...
41
42
43
44
45
...
»

Summary of Contents for Barracuda 18 ST118273LC

Page 1: ... Barracuda 18 Disc Drive ST118273N W WD LW WC LC Installation Guide ...

Page 2: ... 45 WC LC drives section 51 1997 1998 Seagate Technology Inc All rights reserved Publication Number 77767513 Rev C June 1998 Seagate Seagate Technology and the Seagate logo are regis tered trademarks of Seagate Technology Inc Barracuda SeaFAX SeaFONE SeaBOARD and SeaTDD are either trade marks or registered trademarks of Seagate Technology Inc or one of its subsidiaries All other trademarks or regi...

Page 3: ...ces used within the drive circuitry Although some devices such as metal oxide semi conductors are extremely sensitive all semiconductors as well as some resistors and capacitors may be damaged or degraded by exposure to static electricity Electrostatic damage to electronic devices may be caused by the direct discharge of a charged conductor or by exposure to the static fields surrounding charged o...

Page 4: ...be carefully read and followed to minimize or eliminate the risk of personal injury The warnings point out conditions or practices that may endanger you or oth ers The cautions point out conditions or practices that may dam age the unit possibly making it unsafe for use Always observe the following warnings and precautions Follow all cautions and warnings in the procedures Use sound safety practic...

Page 5: ... in accordance with UL1950 EN60950 CAN CSA C22 2 950 95 and VDE0805 Seagate takes all reasonable steps to ensure that its products are certifiable to currently accepted standards Typical applica tions of these disc drives include customer packaging and sub system design Safety agencies conditionally certify component assemblies such as the Barracuda disc drive based on their final acceptability in...

Page 6: ...weise machen auf Situationen oder Praktiken aufmerksam die Sie oder andere gefährden könnten Die Vorsichtshinweise machen auf Situationen oder Praktiken aufmerksam die Einheit beschädigen können so daß deren Gebrauch mit Risiko behaftet ist Die Warn und Vorsichtshinweise sind nicht allumfassend Es ist uns einfach nicht möglich alle Wartungsmethoden oder die eventuellen Risiken jeder Methode zu ken...

Page 7: ...peratur gewöhnlich am höchsten ist Befolgen Sie die oben unter Electrostatic Discharge Protec tion angegebenen Sicherheitsmaßnahmen Nehmen Sie keine Platinen aus dem Laufwerk Wenn eine Platine defekt ist muß das gesamte Laufwerk zur Reparatur eingeschickt werden Die Herausnahme von Platinen durch andere Personen als die für die werkseitige Reparatur zustän digen kann zu einer Beschädigung der Komp...

Page 8: ...laufwerk vorbehaltlich der endgültigen Zulasssung im Endprodukt Designer von Untersystemen sind dafür verantwortlich die Voraussetzungen für die Einhaltung sicherheits oder aufsichtsbehördlicher Vorschriften in ihren Endprodukten und falls gesetzlich vorgeschrieben für die Zulassung zu schaffen Eine Grundvoraussetzung zur Einhal tung der Sicherheitsanforderungen ist die Bereitstellung eines Überla...

Page 9: ...ectromagnetic compliance Seagate uses an independent laboratory to confirm compliance to the directives standard s for CE Marking and C Tick Marking The drive was tested in a representative system for typical appli cations The selected system represents the most popular char acteristics for test platforms The system configurations include 486 Pentium and PowerPC microprocessors 3 5 inch floppy dis...

Page 10: ...gnetic Compatibility Direc tive 89 336 EEC of 03 May 1989 as amended by Directive 92 31 EEC of 28 April 1992 and Directive 93 68 EEC of 22 July 1993 Australian C Tick If this model has the C Tick Marking it complies with the Austra lia New Zealand Standard AS NZS3548 1995 and meets the Electromagnetic Compatibility EMC Framework requirements of Australia s Spectrum Management Agency SMA ...

Page 11: ... M pacific time M F e mail Tape_Sales_Support Seagate com Note You can purchase select tape products and tape acces sories through Seagate Express 24 hours daily by calling 1 800 531 0968 or by faxing your order to 972 481 4812 Technical support services If you need assistance installing your drive consult your dealer Dealers are familiar with their unique system configurations and can help you wi...

Page 12: ... information about Seagate products over the Internet from Seagate s World Wide Web home page http www seagate com or Seagate s ftp server ftp ftp seagate com You can also send e mail with your questions to DiscSupport Seagate com or TapeSupport Seagate com SeaBOARD SeaBOARD is a computer bulletin board system that contains information about Seagate disc and tape drive products and is available 24...

Page 13: ...chnical support spe cialists 24 hours daily Responses are sent during business hours Location Phone number Australia 61 2 9756 5170 Germany 49 89 14305102 UK 44 1628 894084 USA 1 800 SEAGATE or Disc 405 936 1620 Tape 405 936 1640 Location Phone number Australia 61 2 9725 4052 France 33 1 46 04 42 50 Germany 49 89 14305100 Hong Kong 852 2368 7173 Japan 81 3 5462 2979 Korea 82 2 556 4251 7395 Singap...

Page 14: ...ion Phone number Australia 61 2 9725 3366 9 00 A M to 5 00 P M eastern time M F France 33 1 41 86 10 86 9 30 A M to 12 30 P M 2 00 P M to 5 00 P M M F Germany 49 89 1409332 9 30 A M to 12 30 P M 2 00 P M to 4 00 P M M F Hong Kong 852 2368 9918 9 00 A M to 12 00 P M 2 00 P M to 5 30 P M M F Korea 82 2 531 5800 9 00 A M to 12 00 P M 1 00 P M to 6 00 P M M F Singapore 65 488 7584 9 00 A M to 12 00 P ...

Page 15: ...ic and Australia 65 485 3595 65 488 7503 Middle East and Africa 31 2031 67222 31 2065 34320 Europe 31 2031 67222 31 2065 34320 European toll free phone numbers are available for you to contact customer service representatives between 8 30 A M and 5 00 P M European central time Monday through Friday The European call center is located in Amsterdam The Netherlands Location Toll free phone number Aus...

Page 16: ...462 2979 USA 1 800 468 3472 405 949 6740 Other Americas Brazil Canada Mexico 405 949 6706 405 949 6738 Manufacturer s representatives Brazil MA Informatica 55 21 516 6649 55 21 516 5280 Canada Memofix Adtech 905 660 4936 905 812 8099 1 800 624 9857 905 660 4951 905 812 7807 Mexico Abicom Seamax SA DE CV 525 546 4888 525 546 4888 Southern Europe Caesar Italia 39 688 18149 39 688 02103 ...

Page 17: ...in the system or an external enclosure designed to house one or more disc drives or other peripheral units In either case the disc drive must receive adequate cooling refer to Providing adequate cooling and it must be sufficiently grounded and shielded from emis sions The Barracuda 18 Product Manual part number 77767512 contains guidelines for a properly designed enclosure Model N version with 50 ...

Page 18: ...sk rotation RPM 7 200 r min Average latency 4 17 msec Internal transfer rate variable with zone 120 190 Mbits sec Maximum synchronous SCSI transfer rate N model 20 Mbytes sec W WD WC models 40 Mbytes sec LW LC 80 Mbytes sec 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 spare tra...

Page 19: ...able 2c ST118273N W WC Voltage 5V 12V Regulation 5 5 5 2 Max operating current DC 1 1 15 1 35 Avg idle current DCX 1 0 75 0 8 Max starting current peak DC 3 peak AC 3 1 2 2 8 4 2 Delayed motor start max 1 4 0 65 0 06 Peak operating current Typical DCX 1 6 Maximum DC 1 Maximum peak 1 05 1 15 1 7 1 3 1 35 3 15 ...

Page 20: ...follows Table 2c ST118273WD Voltage 5V 12V Regulation 5 5 5 2 Max operating current DC 1 1 23 1 35 Avg idle current DCX 1 0 78 0 8 Max starting current peak DC 3 peak AC 3 1 23 2 8 4 2 Delayed motor start max 1 4 0 67 0 06 Peak operating current Typical DCX 1 6 Maximum DC 1 Maximum peak 1 16 1 23 2 00 1 3 1 35 3 15 ...

Page 21: ...een completed and that the drive is able to accept selection by the host initiator 3 See the 12V current profile in the Barracuda 18 Product Manual publication number 77767512 4 This condition occurs when the Motor Start option is enabled and the drive has not yet received a Start Motor command ST118273LW LC Voltage 5V 12V Regulation 5 5 5 2 Max operating current DC 1 1 4 1 35 Avg idle current DCX...

Page 22: ...1 Minimum current loading for each supply voltage is not less than 4 of the maximum operating current shown 2 Use separate ground returns for 5V and 12V supplies 3 Where power is provided to multiple drives from a common supply carefully consider individual drive power require ments Where multiple units are powered on simultaneously be sure the peak starting current is available to each device Tab...

Page 23: ... Drive models Page ST118273N 41 ST118273W WD LW 45 ST118273WC LC 51 General information The following general information topics are discussed SCSI ID jumpers Drive termination Terminator power Interface drivers and data path width notes Other applicable jumper options Providing adequate cooling Mounting the drive and connecting cables1 Formatting the drive 1This mounting procedure does not apply ...

Page 24: ... details about its requirements for proper SCSI device installation Note This drive is a SCAM SCSI Configured Auto Magically compliant drive If the system into which you are installing this drive requires SCAM compliant drives you do not need to be concerned about the drive ID jumper settings as the system automatically assigns your new drive the ID it wants it to have The system may or may not us...

Page 25: ...The top example in Figure 2 shows an internal hard disc at one end of the SCSI bus with the SCSI controller at the other end both are terminated The bottom example shows two additional SCSI devices connected externally this means the SCSI con troller is no longer on the end of the SCSI chain and should not be terminated Note Some controllers prefer to remain terminated even if they are in the midd...

Page 26: ...c section I O circuits and data path widths WD models use differential I O circuits You cannot mix these models with single ended models N W WC and LC on the same SCSI bus The circuits are incompatible with each other W WD WC and LW models have a wide 16 bit SCSI data bus rather than the standard non wide 8 bit SCSI data bus however you can use these wide drives on a standard non wide 8 bit data b...

Page 27: ...ce count beyond eight requires specification con trol beyond the minimum specified in the ANSI T10 1142D docu ment It is recommended that the devices be uniformly spaced between terminators with the end devices located as close as possi ble to the terminators 3 Values specified by data rate shall apply even if a slower data rate is negotiated Table 4a Cable characteristics for single ended I O cir...

Page 28: ... stub length of the termination 1 meter 3 Values specified by data rate shall apply even if a slower data rate is negotiated 4 Low voltage differential LVD devices only LW models Twisted pair cable should be used with differential transceivers Table 4b Cable characteristics for differential I O circuits Interconnect Maximum distance between terminators meters 1 3 Fast 5 Fast 10 Fast 20 Fast 40 Poi...

Page 29: ...Barracuda 18 Installation Guide Rev C 27 Figure 3a Fifty pin I O connection to drive Figure 3b Sixty eight pin connection to drive ...

Page 30: ...le number of devices on the SCSI bus See Table 4a and system documentation Figure 3c Multiple drive connection to host adapter 2 Host Adapter PCB Pin 1 check your adapter for Pin 1 location SCSI ID 1 SCSI ID 0 SCSI ID 7 Additional SCSI devices SCSI ID X or last drive 1 N Model Drive ...

Page 31: ...llowable number of devices on the SCSI bus See Table 4a and system documentation 3 External terminator Figure 3d Multiple drive connection to host adapter Host Adapter PCB Pin 1 check your adapter for Pin 1 location SCSI ID 1 SCSI ID 0 SCSI ID 7 Additional SCSI devices SCSI ID X or last drive 2 W Model Drive LW or WD Model Drive 1 3 ...

Page 32: ...Barracuda 18 Installation Guide Rev C Note This drive model plugs directly into a backplane connec tor and therefore uses no cables Figure 3e Drive model WC or LC with single 80 pin I O and power connector ...

Page 33: ...nts remains within acceptable limits during drive operation We recommend orienting the drive or directing the air flow in a way that creates the least amount of air flow resistance while providing air flow above the circuit boards and around the head and disc assembly HDA Also choose the shortest possible path between the air inlet and exit This minimizes the distance traveled by air that is heate...

Page 34: ...entieren oder den Luft strom so zu lenken daß der geringste Luftstromwiderstand erzeugt wird und gleichzeitig ein Luftstrom über den Platinen und um die Kopf und Festplatteneinheit HDA gegeben ist Wählen Sie einen möglichst kurzen Weg zwischen Lufteinlaß und auslaß Dadurch wird die Strecke die die vom Laufwerk und anderen nahegelegenen Hitzequellen aufgewärmte Luft zurücklegt auf ein Minimum besch...

Page 35: ...d air flow Abbildung 4 Empfohlener Luftstromverlauf Note Air flows in the direction shown front to back or in reverse direction back to front Note Air flows in the direction shown or in reverse direction side to side Above unit Under unit Above unit Under unit ...

Page 36: ...drive The maximum length that the screws should extend into the chassis mounting holes is 0 15 inch 3 81 mm measured from the outer surface of the chassis Tighten the screws down evenly Do not over tighten or force the screw if it does not seem to screw in easily because this means the threads are not properly aligned In this case back the screw out and try again Installation des Laufwerkes und An...

Page 37: ...all die Schraube nicht in das Gewindeloch forcieren sondern die Schraube herausnehmen und erneut in das Gewindeloch einführen 2 Verify that all connections between the drive and the host system are correctly installed 2 Prüfen Sie ob alle Verbindungen zwischen dem Laufwerk und dem Host System korrekt hergestellt sind 3 Verify that you have correctly installed jumpers 3 Stellen Sie sicher daß die K...

Page 38: ...rk wird über einen 4 poligen neben dem SCSI Anschluß befestigten Steckverbinder mit Gleichstrom ver sorgt Der Ausgang eines Netzteils muß SELV safety extra low voltage nach IEC 950 entsprechen Abbildung 5 zeigt die Steckerbelegung für den Gleichstromanschluß Zum Anschluß des Gleichstromkabels an das Laufwerk das Kabelende in den Gleichstromanschluß des Laufwerkes stecken Figure 5 DC power connecto...

Page 39: ...he drive in the host system This may increase radiated emissions and is the system designer s responsibility Hinweis Die Signalerde auf der Stromregelungskarte PCB und der Kopf und Festplatteneinheit HDA sind in diesem Laufwerk miteinander verbunden und können nicht getrennt werden Das Gerät in das Sie das Laufwerk eingebaut haben ist ohne elektrisch isolierende Stoßdämpfer direkt an die HDA und P...

Page 40: ...uda 18 Installation Guide Rev C elektromagnetische Strahlung fällt in den Zuständigkeits bereich des Systemdesigners 5 Replace the host system s cover 5 Setzen Sie das Gehäuseoberteil des Host Systems wieder auf ...

Page 41: ...ew length into side of drive 0 15 in 3 81 mm Screw tightening torque 6 0 in lb 675 NM max with minimum thread engagement of 0 12 in 3 05 mm Mounting holes four on bottom 6 32 UNC Max screw length into bottom of drive 0 15 in 3 81 mm Screw tightening torque 6 0 in lb 675 NM max with minimum thread engagement of 0 12 in 3 05 mm Power and interface connectors can extend past the A dimension by 0 040 ...

Page 42: ... Format the disc drive Barracuda 18 disc drives are designed to operate with a variety of operating systems Please refer to your system or SCSI controller manual for information about formatting and setting up the drive Some quick desktop system notes are provided below Quick reference desktop system notes Note Refer to your system or utility manual for detailed instruc tions DOS Set the drive typ...

Page 43: ... ID see Figure 7 To change the SCSI ID install jumpers on the appropriate pins as shown in the illustration Figure 7 Setting the SCSI ID on model N drives A2 A1 A0 SCSI ID 0 default Jumper Plug enlarged to show detail J6 Drive Front SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 L E D R E S R E S Reserved Pin 1 ...

Page 44: ...SI bus disable the terminators by removing the jumper TE from pins 15 and 16 of connector J2 see Fig ure 8 If you install the drive on the end of the SCSI bus enable termination by installing a jumper on pins 15 and 16 of connector J2 Figure 8 Terminating the drive Disable SCSI terminator Enable SCSI terminator default Pin 1 J2 T E D S M E W P P D R E S T P T P J2 Jumper Plug enlarged to show deta...

Page 45: ...e this option and can leave the drive configured as it was shipped from the factory Figure 9 Setting terminator power jumpers Term Power to SCSI Bus Term Power from Drive default N model drives T E D S M E W P P D R E S T P T P Drive furnishes power both to its own terminators and to SCSI bus Term Power from SCSI Bus Position A Pin 1 J2 J2 Jumper Plug enlarged to show detail J2 Drive Front J6 ...

Page 46: ...n 24 seconds Delay Motor Start option valid only if the Enable Motor Start jumper is not connected Enable motor start The drive waits for the Start Unit command from the host before starting the spindle motor Disable motor start The drive starts according to the Delay Motor Start option Motor Start option Pin 1 End SCSI I O Connector Drive with HDA up PCB down viewed from front Pin 1 DC Power Conn...

Page 47: ...tion Optional connections to switching cir cuits in host equipment are provided on J1 auxiliary to set the SCSI ID see Figure 12 Figure 11 Setting the SCSI ID on model W WD drives SCSI ID 0 default Jumper Plug enlarged to show detail J6 Drive Front Pin 1 Reserved A2A1A0 1 A L E D R E S 3 SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 SCSI ID 8 SCSI ID 9 SCSI ID 10 SCSI ID 11...

Page 48: ...ult A0 A1 A2 A3 11 9 7 5 3 1 12 10 8 6 4 2 Host Alternate Usage Plug Pins 1 3 5 and 7 are optional connections to switching circuits in host equipment to establish drive ID Remote Switches For ID selection use jumpers as shown or connect a cable for remote switching as shown below Dashed area is optional host circuitry external to the drive connected to host supplied optional usage plug 5V Drive A...

Page 49: ...n pins 15 and 16 of connector J2 see Figure 13 Note Use active ANSI SCSI 2 Alternative 2 terminators when terminating the bus WD and LW model drives do not have internal terminators or any other way of adding internal termination to the drive You must provide external differential termination to these drives when termination is required 1 The TE jumper is not applicable to WD and LW drives Figure ...

Page 50: ... TP configurations for WD model drives see Figure 14 Figure 14 Setting terminator power jumpers Term Power to SCSI Bus Term Power from Drive default W model drives T E D S M E W P P D R E S T P T P W P D S M E P D R E S R E S R E S T P Host adapter or other device provides term power to external terminator Term Power to SCSI Bus default WD model drives Drive furnishes power both to its own termina...

Page 51: ... For example if the SCSI ID 2 the drive starts in 24 seconds Delay Motor Start option valid only if the Enable Motor Start jumper is not connected Enable motor start The drive waits for the Start Unit command from the host before starting the spindle motor Disable motor start default The drive starts according to the Delay Motor Start option Motor Start option Pin 1 End SCSI I O Connector 1 Drive ...

Page 52: ...forces single ended I O operation No jumper allows host to select either single ended or LVD operation S E D S M E W P P D R E S R E S T P Pin 1 J2 J2 Jumper Plug enlarged to show detail J2 Drive Front J6 Host adapter or other device provides term power to external terminator Term Power to SCSI Bus default default ...

Page 53: ...over the SCSI bus by the host system using connector contacts 39 ID0 40 ID2 79 ID1 and 80 ID3 Users need not install jumpers to select SCSI ID Terminating the drive WC and LC model drives do not have internal terminators or any other way of adding internal termination to the drive Exter nal termination for these drives must be supplied by the host equipment ...

Page 54: ...eck option Write protect Off enables writing Write protect On disables writing Write Protect option The host system has complete control over motor start functions Do not install a jumper on these pins Delay Motor Start option The host system has complete control over motor start functions Do not install a jumper on these pins Enable Motor Start option R E S D S M E W P P D R E S R E S R E S Pin 1...

Page 55: ...es writing Write Protect option The host system has complete control over motor start functions Do not install a jumper on these pins Delay Motor Start option The host system has complete control over motor start functions Do not install a jumper on these pins Enable Motor Start option S E D S M E W P P D R E S R E S R E S Pin 1 J2 default default default default J2 Jumper Plug enlarged to show de...

Page 56: ...jumper option for LC drives S E D S M E W P P D R E S R E S R E S Pin 1 J2 J2 Jumper Plug enlarged to show detail J2 Drive Front J6 A jumper here forces single ended I O operation No jumper allows host to select either single ended or LVD operation Single Ended I O default ...

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Page 60: ...Seagate Technology Inc 920 Disc Drive Scotts Valley CA 95066 4544 USA Publication Number 77767513 Rev C Printed in USA ...

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