HP Xw8200 LSI 20320A-R PCI: Ultra 320 SCSI to PCI-X Host Adapters Users Guide - Page 28

Setting SCSI IDs

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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 through 15 for a 16-bit bus. The preset host adapter ID setting is 7, which gives the highest priority to the host adapter. If you plan to boot your computer from a SCSI hard disk drive, you must assign SCSI ID 0 to the drive. Normally, you do not change the host adapter SCSI ID setting from its default value. 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 Adapter SCSI ID SCSI Device Channel A 15 14 13 12 11 10 9 8 7 Ultra320 SCSI to PCI-X host adapter 6 5 4 3 2 1 0 SCSI Device Channel B Ultra320 SCSI to PCI-X host adapter 2-12 Detailed Host Adapter Installation Version 2.1 Copyright © 2002-2003 by LSI Logic Corporation. All rights reserved.

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2-12
Detailed Host Adapter Installation
Version 2.1
Copyright © 2002-2003 by LSI Logic Corporation. All rights reserved.
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 through 15 for a 16-bit bus.
The preset host adapter ID setting is 7, which gives the highest priority
to the host adapter.
If you plan to boot your computer from a SCSI hard disk drive, you must
assign SCSI ID 0 to the drive. Normally, you do not change the host
adapter SCSI ID setting from its default value.
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 Adapter
SCSI ID
SCSI Device Channel A
SCSI Device Channel B
15
14
13
12
11
10
9
8
7
Ultra320 SCSI to PCI-X host
adapter
Ultra320 SCSI to PCI-X host
adapter
6
5
4
3
2
1
0