Chapter 4
Utilities
Specifying SCSI Parameters
50
• Fnc #—identifies the channel of the device (00 for channel A, 01 for channel B, and so on). In
this example, because the SCSI board has two channels, one channel is 00 and the other is 01.
• Vendor ID—shows the device’s vendor ID; for the SCSI board, this is the same for both
channels. For all SCSI board HBAs, the ID is 0x1000.
• Device ID—shows the device’s device ID; for the SCSI board, this is the same for both
channels. For all SCSI board HBAs, the ID is 0x0021.
• Slot #—identifies the physical card slot in the system where the HBA is installed; for the SCSI
board, this is the same for both channels. In this example, the HBA is in slot 03.
• Path—identifies the device’s path; for the SCSI board, this is the same for both channels. In
this example, the HBA’s path is Acpi(HWP0002,200)/Pci(1|0) for channel A and
Acpi(HWP0002,200)/Pci(1|1) for channel B.
Using the SCSI board’s information from the example above, the pieces of information that,
combined, tell you this is a SCSI board are the following (shown in bold, for highlighting purposes):
00 40 01 00 0x1000 0x0021 03 Acpi(HWP0002,200)/Pci(1|0)
00 40 01 01 0x1000 0x0021 03 Acpi(HWP0002,200)/Pci(1|1)
Looking at all of the above information together, the vendor (0x1000) and device (0x0021) are the
IDs for a SCSI board. Of the devices with those IDs, this device has two channels (Fnc # of 00
immediately followed by Fnc # of 01). Also, this SCSI board has a numeric (non-XX) slot # (03, in
this example).
Step 2. Still at the EFI shell prompt, type this command to obtain the controller’s handle for the SCSI card:
devtree
A tree of all EFI-capable devices installed in the system is displayed. The output could look like
this:
Device Tree
Ctrl[02]
Ctrl[04] Acpi(HWP0002,0)
Ctrl[76] Acpi(HWP0002,0)/Pci(1|0)
Ctrl[77] Acpi(HWP0002,0)/Pci(1|1)
Ctrl[78] Acpi(HWP0002,0)/Pci(1|2)
Ctrl[79] Acpi(HWP0002,0)/Pci(2|0)
Ctrl[7B] Acpi(HWP0002,0)/Pci(2|0)/Ata(Primary,Master)
Ctrl[7A] Acpi(HWP0002,0)/Pci(3|0)
Ctrl[7C] Acpi(HWP0002,0)/Pci(3|0)/Mac(00306E1ECE06)
Ctrl[05] Acpi(HWP0002,100)
Ctrl[32] Acpi(HWP0002,100)/Pci(2|0)
Ctrl[33] Acpi(HWP0002,100)/Pci(2|0)/Mac(00306E1E9EFA)
Ctrl[7D] LSI Logic Ultra320 SCSI Controller
Ctrl[7E] LSI Logic Ultra320 SCSI Controller
Ctrl[06] Acpi(HWP0002,200)
Ctrl[82] LSI Logic Ultra160 SCSI Controller
Ctrl[83] LSI Logic Ultra160 SCSI Controller
Ctrl[07] Acpi(HWP0002,300)
Ctrl[91] LSI Logic Ultra160 SCSI Controller
Ctrl[92] LSI Logic Ultra160 SCSI Controller
Ctrl[08] Acpi(HWP0002,400)
Ctrl[93] Acpi(HWP0002,400)/Pci(1|0)
Ctrl[94] Acpi(HWP0002,400)/Pci(1|0)/Mac(0002B35BE064)
Ctrl[09] Acpi(HWP0002,600)
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