07

3

248, 249, 250,

251

2150

4.0

6

129

==============================================================================

I/O Device Mapping

I/O device paths are dictated by which LSB the I/O unit is assigned to.

The M4000 and M5000 servers have only one I/O controller on the I/O unit (IOU). For an XSB in Uni-XSB mode, all I/O is on XSB#xx-0. For an XSB in Quad-XSB mode, internal resources, the PCI-X slot, and two PCIe slots are on XSB#xx-0, and two PCIe slots are on XSB#xx-1.

The M8000 and M9000 servers have two I/O controllers; therefore, each XSB can have two PCIe slots assigned to it.

TABLE A-2shows the LSB numbers and the corresponding device path values that are used in I/O device mapping on the server.

TABLE A-2LSB Numbers and Device Path Values

LSB Number

Device Path Value

 

 

00

No value

01

1

02

2

03

3

04

4

05

5

06

6

07

7

08

8

09

9

10

a

11

b

12

c

 

 

94 SPARC Enterprise Mx000 Servers Administration Guide • November 2007