v
The CD value identifies adapter number, the adapter’s devfunc number, or physical location. The
devfunc number is defined as the PCI device number multiplied by 8, plus the function number.
v
The EF value identifies a connector.
v
The GH value identifies a port, address, device, or FRU.
Adapters and cards are identified only with AB-CD.
The possible values for AB are:
00
Processor bus
01
ISA bus
02
EISA bus
03
MCA bus
04
PCI bus used if the PCI bus cannot be identified
05
PCMCIA buses
xy
For PCI adapters where x is equal to or greater than 1. The x and y are characters in the range of 0-9, A-H,
J-N, P-Z (O, I, and lowercase are omitted) and are equal to the parent bus’s ‘ibm, aix-location’ open firmware
property.
The value of CD is the device’s devfunc number (PCI device number multiplied by 8, plus the function
number). The C and D are characters in the range of 0-9, and A-F (hex numbers). Location codes
therefore uniquely identify multiple adapters on individual PCI cards.
EF is the connector ID. It is used to identify the adapter’s connector to which a resource is attached.
GH is used to identify a port, device, or FRU. For example:
v
For a diskette drive, H identifies either diskette drive 1 or 2. G is always 0.
v
For all other devices, GH is equal to 00.
For an integrated adapter, 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.
SCSI devices/drives
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
|bBus 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 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
Processor card C1 plugged into CEC backplane P1:
U0.1-P1-C1
18
NAS Gateway 500 Service Guide
Summary of Contents for TotalStorage NAS Gateway 500
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