Appendix A Mapping Device Path Names 97
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.
IOU Slot 5 xx-0 xx-2 pci@x5,700000
IOU Slot 6 xx-0 xx-3 pci@
x6,600000
IOU Slot 7 xx-0 xx-3 pci@
x7,700000
* xx is the XSB number, in the range of 00-15.
\ xx is the XSB number, in the range of 00-15.
d x is LSB-dependent, and is assigned a value as shown in
TABLE A-2.
TABLE A-7
Internal Devices and Device Paths on a High-end Server
PCIe Slot
Uni-
XSB
*
Quad-
XSB
\
OpenBoot PROM
PCIe Device
Path
d
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)
TABLE A-6 I/O Device Mapping on a High-end Server (Continued)
PCIe Slot Uni-XSB
*
Quad-XSB
\
OpenBoot PROM PCIe Device Path
d
