HP LH4r HP Netserver Service Handbook, Volume 3 - High-End - Page 33

LXe Hot Swap Subsystem SCSI ID Settings

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Default Switch Settings Off On 1 2 3 Upper 4 Left Cage 5 6 1 2 Lower 3 Left 4 Cage 5 6 Rear view Shelf # SCSI ID # L1 L2 L3 123 L4 L5 L6 406 LXe Hot Swap Subsystem SCSI ID Settings Switch 1 and 2 Function I2C Bus Address 3 High/Low SCSI IDs Determines whether the SCSI IDs used for the cage will be the lower IDs or the higher IDs. Applies to Wide-SCSI devices only. See tables below for settings. Note: Setting this switch may cause time-out problems with your NOS due to delayed start of devices with high SCSI ID numbers. 4 SCSI ID Zero Determines SCSI ID of middle shelf in cage (see tables below for settings). 5 Remote Start Determines power-on sequence of the hot swap disk modules. 6 Upper/Lower Cage Identifies the hot-swap card cage as either upper or lower. Description Upper Left Cage: (I2C address=7) Lower Left Cage: (I2C address=6) 1=Off 2=Off 1=Off 2=Off On Assigns high SCSI IDs to the cage. Off Assigns low SCSI IDs to the cage. On Sets middle shelf in the cage (shelf 2 or shelf 5) to SCSI ID 0. Off Sets middle shelf to normal SCSI ID sequence (ID 2 or ID 5). On All disk drives in upper cage poweron sequentially after a delay determined by each drive's SCSI ID. All disk drives in lower cage power on immediately when NetServer power is turned on. Recommended setting. Off Not supported. On For lower cage Off For upper cage 27

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27
Default Switch Settings
On
Off
1
2
3
4
5
6
Upper
Left
Cage
Lower
Left
Cage
1
2
3
4
5
6
Rear view
L1
1
L4
4
L2
2
L5
0
L3
3
L6
6
Shelf #
SCSI ID #
LXe Hot Swap Subsystem SCSI ID Settings
Switch
Function
Description
1 and 2
I
2
C Bus Address
Upper Left Cage:
1=Off
(I
2
C address=7)
2=Off
Lower Left Cage:
1=Off
(I
2
C address=6)
2=Off
3
High/Low SCSI IDs
Determines whether the SCSI IDs used for
the cage will be the lower IDs or the higher
IDs.
Applies to Wide-SCSI devices only. See
tables below for settings.
Note: Setting this switch may cause time-out
problems with your NOS due to delayed
start of devices with high SCSI ID numbers.
On
Assigns high SCSI IDs to the cage.
Off
Assigns low SCSI IDs to the cage.
4
SCSI ID Zero
Determines SCSI ID of middle shelf in cage
(see tables below for settings).
On
Sets middle shelf in the cage (shelf 2
or shelf 5) to SCSI ID 0.
Off
Sets middle shelf to normal SCSI ID
sequence (ID 2 or ID 5).
5
Remote Start
Determines power-on sequence of the hot
swap disk modules.
On
All disk drives in upper cage power-
on sequentially after a delay determined
by each drive’s SCSI ID. All disk drives in
lower cage power on immediately when
NetServer power is turned on.
Recommended setting.
Off
Not supported.
6
Upper/Lower Cage
Identifies the hot-swap card cage as either
upper or lower.
On
For lower cage
Off
For upper cage