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Appendix A Mapping Device Path Names 95
Internal Devices on the M8000 and M9000 Servers
The IOUA is a PCIe Host Bus Adapter that provides access to internal devices when
installed at specific locations. The IOUA contains two 1Gb Ethernet ports on the card
(“on-board”). When the IOUA is installed at specific locations, it also provides access
to storage located on the IOU, as well as platform DVD/DAT resources at the
locations shown in
TABLE A-7. In the PCIe device path, x is LSB-dependent, and is
assigned a value as shown in
TABLE A-2. xx is the XSB number and is in the range
from 00-15. nn is the number associated with the PSB to which the DVD or DAT
device is attached, as further explained in the table footnote.
TABLE A-7 Internal Devices and Device Paths on a High-end Server
PCIe Slot
Uni-
XSB
*
Quad-
XSB
†
OpenBoot
PROM PCIe
Device Path
‡
OpenBoot PROM IOUA HBA On-board, IOU, and Platform Accessible
Devices
§
IOU Slot 0 xx-0 xx-0 pci@x0,600000 .../pci@0,1/network@1 (IOUA HBA On-board BGE Port 0)
.../pci@0,1/network@1,1 (IOUA HBA On-board BGE Port 1)
.../pci@0/scsi@1/disk@0 (IOU HD0; SCSI Target 0)
.../pci@0/scsi@1/disk@1 (IOU HD1; SCSI Target 1)
.../pci@0/scsi@1/disk@4 (Platform CD/DVD at cfgdevice port
nn-0; SCSI Target 4)
.../pci@0/scsi@1/tape@5 (Platform DAT at cfgdevice port nn-0;
SCSI Target 5)
IOU Slot 1 xx-0 xx-0 pci@
x1,700000
IOU Slot 2 xx-0 xx-1 pci@
x2,600000 .../pci@0,1/network@1 (IOUA HBA On-board BGE Port 0)
.../pci@0,1/network@1,1 (IOUA HBA On-board BGE Port 1)
.../pci@0/scsi@1/disk@4 (Platform CD/DVD at cfgdevice port
nn-2; SCSI Target 4)
.../pci@0/scsi@1/tape@5 (Platform DAT at cfgdevice port nn-2;
SCSI Target 5)
IOU Slot 3 xx-0 xx-1 pci@
x3,700000 .
IOU Slot 4 xx-0 xx-2 pci@
x4,600000 .../pci@0,1/network@1 (IOUA HBA On-board BGE Port 0)
.../pci@0,1/network@1,1 (IOUA HBA On-board BGE Port 1)
.../pci@0/scsi@1/disk@0 (IOU HD2; SCSI Target 0)
.../pci@0/scsi@1/disk@1 (IOU HD3; SCSI Target 1)
.../pci@0/scsi@1/disk@4 (Platform CD/DVD at cfgdevice port
nn-4; SCSI Target 4)
.../pci@0/scsi@1/tape@5 (Platform DAT at cfgdevice port nn-4;
SCSI Target 5)