2.5 Setting SCSI IDs

SCSI IDs identify each SCSI device on the SCSI bus. Each SCSI ID on a given bus must be unique. The IDs are 0–15 for a 16-bit bus. The preset host adapter ID setting is 7, which gives the highest priority to the host adapter.

Typically, you set the SCSI ID of the SCSI device with jumpers or with a switch on the device. You must not duplicate SCSI IDs on a SCSI bus. LSI Logic recommends that you record the SCSI IDs of all SCSI devices. Table 2.1 provides a place to keep this record.

Table 2.1

SCSI ID Record for Dual Channel Host Adapter

 

 

 

SCSI ID

SCSI Device Channel A

SCSI Device Channel B

 

 

 

15

 

 

 

 

 

14

 

 

 

 

 

13

 

 

 

 

 

12

 

 

 

 

 

11

 

 

 

 

 

10

 

 

 

 

 

9

 

 

 

 

 

8

 

 

 

 

 

7

Ultra320 SCSI host adapter

Ultra320 SCSI host adapter

 

 

 

6

 

 

 

 

 

5

 

 

 

 

 

4

 

 

 

 

 

3

 

 

 

 

 

2

 

 

 

 

 

1

 

 

 

 

 

0

 

 

 

 

 

Setting SCSI IDs

2-13

Version 2.2

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