Appendix C
Utilities
Specifying SCSI Parameters
190
• Path—identifies the device’s path; for the SCSI interface, this is the same for both channels. In
this example, the SCSI interface path is Acpi(HWP0002,200)/Pci(1|0) for channel A and
Acpi(HWP0002,200)/Pci(1|1) for channel B.
Using the SCSI interface information from the example above, the pieces of information that,
combined, tell you this is a SCSI interface are the following (shown in bold, for highlighting
purposes):
00 20 01 00 0x1000 0x0030 xx Acpi(HWP0002,200)/Pci(1|0)
00 20 01 01 0x1000 0x0030 xx Acpi(HWP0002,200)/Pci(1|1)
Looking at all of the above information together, the vendor (0x1000) and device (0x0030) are the
IDs for a SCSI interface. Of the devices with those IDs, this device has two channels (Fnc # of 00
immediately followed by Fnc # of 01). Also, this SCSI interface has a non-numeric (XX) slot #
indicating that it is on the system board.
Step 2. Still at the EFI shell prompt, type this command to obtain the controller’s handle for the SCSI
interface:
devtree
A tree of all EFI-capable devices installed in the server is displayed. The output could look like this:
Shell> devtree
Device Tree
Ctrl[04]
Ctrl[06] VenHw(SysROM)
Ctrl[0B] Acpi(HWP0002,0)
Ctrl[15] Usb Open Host Controller
Ctrl[16] Usb Open Host Controller
Ctrl[17] Acpi(HWP0002,0)/Pci(1|2)
Ctrl[18] PCI IDE/ATAPI Controller
Ctrl[56] DV-28E-C
Ctrl[91] FAT File System [FAT32] 118 MB
Ctrl[0C] Acpi(HWP0002,100)
Ctrl[1C] LSI Logic Ultra320 SCSI Controller
Ctrl[1D] LSI Logic Ultra320 SCSI Controller
Ctrl[1E] Acpi(HWP0002,100)/Pci(2|0)
Ctrl[57] Acpi(HWP0002,100)/Pci(2|0)/Mac(000E7F7E07FA)
Ctrl[1F] Acpi(HWP0002,100)/Pci(2|1)
Ctrl[58] Acpi(HWP0002,100)/Pci(2|1)/Mac(000E7F7E07FB)
Ctrl[0D] Acpi(HWP0002,200)
Ctrl[20] Acpi(HWP0002,200)/Pci(1|0)
Ctrl[0E] Acpi(HWP0002,300)
Ctrl[22] HP 2 Gb Dual Port PCI/PCI-X Fibre Channel Adapter ( Port 1)
Ctrl[23] HP 2 Gb Dual Port PCI/PCI-X Fibre Channel Adapter ( Port 2)
Ctrl[0F] Acpi(HWP0002,400)
Ctrl[24] Acpi(HWP0002,400)/Pci(1|0)
Ctrl[25] Acpi(HWP0002,400)/Pci(1|1)
Ctrl[10] Acpi(HWP0002,600)
Ctrl[26] Acpi(HWP0002,600)/Pci(1|0)
Ctrl[11] Acpi(HWP0002,700)
Ctrl[27] Acpi(HWP0002,700)/Pci(1|0)
Ctrl[28] Acpi(HWP0002,700)/Pci(1|1)
Ctrl[43] 16550 Serial UART Driver
Ctrl[44] VT-100+ Serial Console
Ctrl[3E] Primary Console Input Device
Ctrl[3F] Primary Console Output Device
Ctrl[3D] Primary Standard Error Device
Ctrl[29] Acpi(HWP0002,700)/Pci(2|0)
Ctrl[40] Acpi(PNP0501,0)
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