Seagate ST12550N/ND/W/WD, ST11950N/ND/W/WD manual Initial setup information

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ST11950 and ST12550 Installation Guide, Rev. D 19

continued from previous page

11No terminator power. See Section 11.7.3.4 in the Prod- uct Manual.

12All power-saving features are enabled.

13Seeking is defined as a third-stroke seek at OD. The command is issued every 20 msec.

14Read track is defined as repeat reads of track 15 with a 91% duty cycle.

15Read track is defined as repeat reads of track 15 with a 75% duty cycle.

Initial setup information

The following topics are presented to guide you through the installation process. These topics are presented in the order you should follow to properly install the drive.

•Setting the SCSI ID jumpers

•Terminating the drive

•Changing other applicable jumper options

•Synchronizing spindles

•Providing adequate cooling

•Mounting the drive and connecting cables

•Formatting the drive

Each option jumper illustration identifies the Original Equipment Manufacturer (OEM) default factory setting. These settings are the most common ones used but are not necessarily the ones set for your particular system.

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Contents Barracuda 1 Disc Drive ST11950N/ND/W/WD ST12550N/ND/W/WD Contents Electrostatic discharge protection ST11950 and ST12550 Installation Guide, Rev. DImportant safety information and precautions Page ST11950 and ST12550 Installation Guide, Rev. D Wichtige Sicherheitshinweise Page Page Page Page SeaFAX USA 408 438-2620 England 10 ST11950 and ST12550 Installation Guide, Rev. DSeaFONE 408 SeaTDD 408SeaBOARD TelephoneLocation Number General description 12 ST11950 and ST12550 Installation Guide, Rev. DBarracuda 1 and 2 disc drive N/ND type Characteristics ST11950N/ND ST11950W/WD 14 ST11950 and ST12550 Installation Guide, Rev. DCharacteristics ST12550N/ND ST12550W/WD Amps 16 ST11950 and ST12550 Installation Guide, Rev. DST11950 and ST12550 Installation Guide, Rev. D From previous 18 ST11950 and ST12550 Installation Guide, Rev. DInitial setup information Setting the Scsi ID jumpers 20 ST11950 and ST12550 Installation Guide, Rev. DSetting the Scsi ID on N- and ND-type drives Setting the Scsi ID on W- and WD-type drives 22 ST11950 and ST12550 Installation Guide, Rev. DScsi bus termination Terminating the driveST11950N and ST12550N drives Installing terminator packs ST11950N shownST11950W and ST12550W drives Enabling termination On ST11950W and ST12550W drives 26 ST11950 and ST12550 Installation Guide, Rev. DTermination is supplied Terminator powerChanging other applicable jumper options 28 ST11950 and ST12550 Installation Guide, Rev. DScsi Scsi I/O 30 ST11950 and ST12550 Installation Guide, Rev. DRES PAR DMS RES MTR WP Synchronizing spindles 32 ST11950 and ST12550 Installation Guide, Rev. DJ5 Pin ST11950N/ND ST12550N/ND Drives 34 ST11950 and ST12550 Installation Guide, Rev. DProviding adequate cooling Kühlung des Systems 36 ST11950 and ST12550 Installation Guide, Rev. DAbove unit Über der Einheit Under unit Unter der Einheit Mounting the drive and connecting cables 38 ST11950 and ST12550 Installation Guide, Rev. DInstallation des Laufwerkes und Anschluß der Kabel Dimensions Abbildung 15. Laufwerkabmessungen 40 ST11950 and ST12550 Installation Guide, Rev. DPage DC power connector Abbildung 16. Gleichstromanschluß Hinweis Page Formatting the drive