HP Integrity Server rx4640 manual Tip

Utilities

Specifying SCSI Parameters

In the preceding example, the SCSI interface information is shown highlighted bold. You can tell the information is for the SCSI interface because the path on the first line—Acpi(HWP0002,100)— is the path from the information displayed by the info io command. The next two lines are for the SCSI interface two channels, one line for each channel (they contain the SCSI interface description [LSI Logic Ultra320 SCSI Controller]). Note the value shown for Ctrl—17and 18—at the beginning of each of those lines; this is the controller’s handle for each channel. You need to know it for the next step.

NOTE The controller’s handle values change on every boot.

Step 3. Still at the EFI shell prompt, enter the following command to obtain the EFI driver’s handle for the SCSI interface:

drvcfg

A list of all EFI-capable configurable components in the server displays. The output may look like this:

Shell> drvcfg

Configurable Components

Drv[3D] Ctrl[15] Lang[eng]

Drv[3F] Ctrl[19] Lang[eng]

Drv[45] Ctrl[17] Lang[eng]

Drv[45] Ctrl[18] Lang[eng]

This listing shows which driver controls which device (controller). In the above example, the SCSI interface information is shown highlighted bold. You can tell the information is for this SCSI interface because the values shown for Ctrl—17 and 18—are the controller’s handles for the SCSI interface two channels (from the information displayed by the devtree command).

NOTE	The EFI driver’s handle values change on every boot.
TIP	From this command (drvcfg), we recommend you record these two pieces of
	information for each channel of each SCSI interface for parameters to be changed:
	•	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 interface. Still at the EFI shell prompt, enter the following command:

drvcfg -sdrvr_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

Appendix C 183