IBM RS/6000 44P 270 Service Manual page 30

For integrated adapters, EF-GH is the same as the definition for a pluggable adapter.
For example, the location code for a diskette drive is 01-D1-00-00. A second diskette
drive is 01-D1-00-01.
For SCSI devices, the location code is defined as follows:
AB-CD-EF-G,H
| | | | |
| | | | Logical Unit address of the SCSI Device
| | | Control Unit Address of the SCSI Device
| | Connector ID
| devfunc Number, Adapter Number or Physical Location
Bus Type or PCI Parent Bus
Where
AB-CD-EF are the same as non-SCSI devices.
G defines the control unit address of the device. Values of 0 to 15 are valid.
H defines the logical unit address of the device. Values of 0 to 255 are valid.
A bus location code that is also generated as '00-XXXXXXXX' where XXXXXXXX is
equivalent to the node's unit address.
Examples of physical location codes displayed by AIX are as follows:
v First processor card plugged into planar 1:
P1-C1
v Second memory card in planar P1:
P1-M2
v Memory DIMM 12 on second memory card plugged into planar P1:
P1-M2.12
Examples of AIX location codes displayed are as follows:
v Integrated PCI adapter as follows:
10-80
10-60
10-88
v Pluggable PCI adapters as follows:
20-58 to 20-5F
20-60 to 20-67
10-68 to 10-6F
10-70 to 10-77
10-78 to 10-7F
v Integrated ISA adapters as follows:
12
Service Guide
Ethernet
Integrated SCSI Port 1 (internal)
Integrated SCSI Port 2 (external)
Any PCI card in slot 1
Any PCI card in slot 2
Any PCI card in slot 3
Any PCI card in slot 4
Any PCI card in slot 5