Seagate ST15150W/WD/WC, ST15150N/ND/DC manual Scsi ID jumpers

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20	Barracuda 4 Installation Guide, Rev. E

SCSI ID jumpers

Each device on the SCSI chain must have a unique SCSI ID. The host system’s SCSI controller usually uses the highest-numbered ID available; therefore the lower-numbered SCSI IDs are normally used for other SCSI devices such as this Barracuda disc drive.

Most Barracuda disc drives are factory set with the SCSI ID set at 0. To change the SCSI ID, refer to the appropriate drive section for your model.

Note. Most SCSI controllers (host adapters) allow you to skip a SCSI ID. For example, you can have ID0, ID1, and ID3 (skipping ID2). Other controllers do not allow this; refer to your system or controller user’s manual for details about its requirements for proper SCSI device installation.

After completing the installation process, if the drive’s LED does not show on/off activity when the host is trying to communicatewith the drive, a duplicate SCSI ID may be the problem. If this is the case, change the ID so that each device on the SCSI chain has its own unique ID. Also check your system or controller user’s manual to ensurethat you have not violated its SCSI ID numbering recommendations.

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Contents Barracuda 4 Family ST15150N/ND/DC ST15150W/WD/WC Contents Preface Electrostatic discharge protectionImportant safety information and precautions Page Barracuda 4 Installation Guide, Rev. E Wichtige Sicherheitshinweise Barracuda 4 Installation Guide, Rev. E Page Barracuda 4 Installation Guide, Rev. E Page SeaFAX USA 408 438-2620 England CompuServe ForumSeaTDD 408 SeaFONE 408SeaBOARD Telephone Location NumberGeneral description Barracuda 4 disc drive W/WD WD/WC/DC ND/WD/DC Barracuda 4 Installation Guide, Rev. E From previous Drive models General informationScsi ID jumpers Drive termination Scsi bus terminationSynchronizing spindles optional Terminator powerOther applicable jumper options Providing adequate cooling Kühlung des Systems Suggested air flow Abbildung 5. Empfohlener Luftstromverlauf Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der Kabel Dimensions ST15150N/ND Abbildung 6. Laufwerkabmessungen Dimensions ST15150W/WD Abbildung 7. Laufwerkabmessungen Dimensions ST15150WC/DC Abbildung 8. Laufwerkabmessungen Page DC power connector Abbildung 9. Gleichstromanschluß Hinweis Formatting the drive Setting the Scsi ID jumpers ScsiTerminating the drive Terminating the driveDrivesN/ND Synchronizing spindles ScsiSeveral other jumper options are available as illustrated DrivesW/WD WD drives Power Connector ST15150W/WD Pin DC Power Write Protect option WP Write Protect = On disables writing MTR DrivesWC/DC Connecting remote LEDs Jumper options Barracuda 4 Installation Guide, Rev. E Barracuda 4 Installation Guide, Rev. E