Determine the SCSI ID of each device on the SCSI bus. Note any duplications. Make any necessary changes to the SCSI IDs and record the IDs for future reference. The following table is provided as a place to keep this record.

2.5.2 SCSI ID Record

SCSI IDSCSI Device Channel ASCSI Device Channel B

 

 

 

 

 

 

15

 

 

 

 

14

 

 

 

Installation

13

 

 

 

 

 

 

 

12

 

 

 

 

11

 

 

 

 

10

 

 

 

HW

09

 

 

 

 

 

 

 

2.

08

 

 

 

 

 

 

 

07

 

 

 

 

06

 

 

 

 

05

 

 

 

 

04

 

 

 

 

03

 

 

 

 

02

 

 

 

 

01

 

 

 

 

00

 

 

 

 

 

 

 

 

 

2.5.3 Terminate the Ends

To ensure reliable communication on the SCSI bus, the device at the end of each cable, or the end of the cable itself, must have a terminator installed (or enabled). Terminators must be removed, or termination must be disabled, on devices between the ends of each cable.

NOTE: When connecting Ultra160 or Ultra2 SCSI devices, the SCSI bus must be terminated either on the end of the cable (with a permanent terminator) or with a separate terminating connector. Ultra SCSI and earlier single-ended devices can terminate the bus directly from the device. If you use an Ultra SCSI terminator on an LVD Ultra160 and Ultra2 SCSI bus you will force the bus to Single-ended mode, limiting the speed and cable distance. For this reason be sure that you have the necessary Ultra160 or Ultra2 cable or terminator before installing the Ultra160 SCSI devices.

Chapter 2 Hardware Installation

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