HP Integrity rx4640, Operation And Maintenance Manual

Page: 105 / 232

Chapter 5
Utilities
Specifying SCSI Parameters
105
In the above example, this SCSI board’s information is shown in bold , for highlighting purposes. You can tell the
information is for this SCSI board because the path on the first line—Acpi(HWP0002,200)— is the HBA’s path
from the information displayed by the info io command. The next two lines are for the SCSI board’s two channels,
one line for each channel (they contain the SCSI board’s description [LSI Logic Ultra160 SCSI Controller]). Note the
value shown for Ctrl—82 and 83—at the beginning of each of those lines; this is the
controller’s handle for that
channel. You need to know it for the next step.
NOTE The controller’s handle values will change on every boot.
Step 3. Still at the EFI shell prompt, type this command to obtain the EFI driver’s handle for the SCSI card:
drvcfg
A list of all EFI-capable configurable components in the system is displayed. The output may look like this:
Drv[26] Ctrl[79] Lang[eng]
Drv[34] Ctrl[83] Lang[eng]
Drv[35] Ctrl[82] Lang[eng]
Drv[36] Ctrl[92] Lang[eng]
Drv[37] Ctrl[91] Lang[eng]
Drv[38] Ctrl[95] Lang[eng]
Drv[71] Ctrl[7D] Lang[eng]
Drv[71] Ctrl[7E] Lang[eng]
This listing shows which driver controls which device (controller). In the above example, this SCSI board’s
information is shown in bold , for highlighting purposes. You can tell the information is for this SCSI board
because the values shown for Ctrl—82 and 83—are the controller’s handles for the SCSI board’s two channels
(from the information displayed by the devtree command).
NOTE
The EFI driver’s handle values will change on every boot.
TIP From this command (
drvcfg
), we recommend you record these two pieces of information for
each channel of each SCSI board HBA you want to change the SCSI parameters for:
•
Drv
(the EFI driver’s handle)
•
Ctrl
(the controller’s handle)
Step 4. Using the information (the driver’s handle [
Drv
] and the controller’s handle [
Ctrl
]) from the
drvcfg
command,
start the EFI SCSI Setup Utility for one channel of this SCSI board. Still at the EFI shell prompt, type this
command:
drvcfg -s
drvr_handle cntrl_handle
where
•
drvr_handle
is the handle of the driver that controls the channel whose SCSI ID you want to display or
change
•
cntrl_handle
is the handle of the controller for the channel whose SCSI ID you want to display or change
So, continuing the example for channel A of this SCSI board, you would type:
drvcfg -s 35 82