HP LH4r HP Netserver Service Handbook, Volume 2 - Mid - Page 46

Hot Swap Subsystem SCSI Address Settings

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On Off 1 2 3 4 5 6 Technical Information Label with configuration information Always set switches 1, 2 and 6 to Off. Switch 1 2 3 4 Function I2C Bus Setting I2C Bus Setting High/Low Addresses Sets SCSI addresses for upper or lower eight addresses Set to Off if not using Fast-Wide (68 pin) SCSI SCSI Address Zero Sets middle shelf in hot-swap cage to SCSI ID 0. 5 Remote Start Determines control of the hot swap disk module power-on sequence. 6 Reserved Settings Always set to Off Always set to Off On Sets drives to upper eight SCSI addresses. Off Sets drives to lower eight SCSI addresses. On Sets middle shelf in the cage (shelf 2) to SCSI ID 0. Off Sets middle shelf to SCSI ID 2. On Internal control: cage is set to delayed start. Recommended setting. Always set to Off Hot Swap Subsystem SCSI Address Settings Switches 3 and 4 determine the SCSI address setting for each shelf in the hot swap subsystem. The table below lists the possible SCSI addresses for each shelf. NOTE For information on changing the CD-ROM drive SCSI address setting, see the Technical Information Label on the CD-ROM drive. Hot-Swap Shelf SCSI Address Settings Switch 3 4 SCSI Address Off Off Shelf 1 = ID 1 Shelf 2 = ID 2 Shelf 3 = ID 3 Off On Shelf 1 = ID 1 Shelf 2 = ID 0 Shelf 3 = ID 3 38

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38
Technical Information Label
with configuration information
Off
On
1
2
3
4
5
6
Always set switches 1, 2 and 6 to Off.
Switch
Function
Settings
1
I
2
C Bus Setting
Always set to
Off
2
I
2
C Bus Setting
Always set to
Off
3
High/Low Addresses
Sets SCSI addresses for upper or lower eight
addresses
Set to Off if not using Fast-Wide (68 pin) SCSI
On
Sets drives to upper eight SCSI addresses.
Off
Sets drives to lower eight
SCSI addresses.
4
SCSI Address Zero
Sets middle shelf in hot-swap cage to SCSI ID 0.
On
Sets middle shelf in the cage
(shelf 2) to SCSI ID 0.
Off
Sets middle shelf to SCSI ID 2.
5
Remote Start
Determines control of the hot swap disk module
power-on sequence.
On
Internal control: cage is set to delayed start.
Recommended setting.
6
Reserved
Always set to
Off
Hot Swap Subsystem SCSI Address Settings
Switches 3 and 4 determine the SCSI address setting for each shelf in the hot swap subsystem. The table
below lists the possible SCSI addresses for each shelf.
NOTE
For information on changing the CD-ROM drive SCSI address setting, see the
Technical Information Label on the CD-ROM drive.
Hot-Swap Shelf SCSI Address Settings
Switch
3
4
SCSI Address
Off
Off
Shelf 1 = ID 1
Shelf 2 = ID 2
Shelf 3 = ID 3
Off
On
Shelf 1 = ID 1
Shelf 2 = ID 0
Shelf 3 = ID 3