HP LH4r HP Netserver Service Handbook, Volume 2 - Mid - Page 97

Switch, Function, Settings

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Configuring Switch Settings on the Hot Swap Subsystem Switch setting combinations are given in the table below. Off On 1 2 3 4 UPPER 5 CAGE 6 1 2 LOWER 3 CAGE 4 5 6 Switch 1 2 3 4 5 6 Function I2C Bus Setting I2C Bus Setting High/Low Addresses SCSI Address Zero Sets middle shelf in cage to SCSI ID 0. Remote Start Determines control of the hot swap disk module power-on sequence. Upper/Lower Cage Identifies cage location. This is important information for the SCSI addresses and for the I2C bus. Settings Always set to Off Always set to Off Always set to Off On: Sets middle shelf in the cage (shelf 2 or shelf 5) to SCSI ID 0. Off: Sets middle shelf to normal SCSI address sequence. See SCSI Address Settings table below for description of settings. On: Internal control: Upper cage is set to delayed start and lower cage is set to power-on at startup. Off: Power-on sequence is determined by the disk array controller. On: Lower cage Off: Upper cage See SCSI Address Settings table below for description of settings. 89

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89
Configuring Switch Settings on the Hot Swap Subsystem
Switch setting combinations are given in the table below.
UPPER
CAGE
1
2
3
4
5
6
LOWER
CAGE
1
2
3
4
5
6
Off
On
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
Always set to Off
4
SCSI Address Zero
Sets middle shelf in cage to
SCSI ID 0.
On: Sets middle shelf in the cage (shelf 2 or shelf 5) to
SCSI ID 0.
Off: Sets middle shelf to normal SCSI address
sequence.
See SCSI Address Settings table below for description
of settings.
5
Remote Start
Determines control of the
hot swap disk module
power-on sequence.
On: Internal control: Upper cage is set to delayed start
and lower cage is set to power-on at startup.
Off: Power-on sequence is determined by the disk array
controller.
6
Upper/Lower Cage
Identifies cage location.
This is important information
for the SCSI addresses and
for the I
2
C bus.
On: Lower cage
Off: Upper cage
See SCSI Address Settings table below for description
of settings.