IBM eserver 630 6C4, Service Manual

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U0.1-P2-Z1-A8... points to the actual SCSI bus and devices attached to Z1, in this
case a hot-plug disk drive in bay location D10 with a SCSI ID of 8.
AIX Location Codes
The basic formats of the AIX location codes are as follows:
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For non-SCSI devices/drives:
– AB-CD-EF-GH
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For SCSI devices/drives:
– AB-CD-EF-G,H
Non-SCSI Devices/Drives
For planars, cards, and non-SCSI devices, the location code is defined as follows:
AB-CD-EF-GH
| | | |
| | | Device/FRU/Port ID
| | Connector ID
| devfunc Number, Adapter Number or Physical Location
Bus Type or PCI Parent Bus
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The AB value identifies a bus type or PCI parent bus as assigned by the firmware.
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The CD value identifies adapter number, the adapter’s devfunc number, or physical
location. The devfunc number is defined as the PCI device number times 8, plus the
function number.
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The EF value identifies a connector.
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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 in the case where 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 possible values for CD depend on the adapter/card:
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For pluggable PCI adapters/cards, CD is the device’s devfunc number (PCI device
number times 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.
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For pluggable ISA adapters, CD is equal to the order of the ISA cards
defined/configured either by SMIT or the ISA Adapter Configuration Service Aid.
34 Eserver
pSeries 630 Models 6C4 and 6E4 Service Guide