System reference codes (SRCs) indicate a server hardware or software problem
that can originate in hardware, in Licensed Internal Code, or in the operating
system.
A server component generates an error code when it detects a problem. An
SRC identifies the component that detected the error code and describes the
error condition. Use the SRC information to identify a list of possible failing
items and to find information about any additional isolation procedures.
SRC formats
SRCs are strings of either six or eight alphanumeric characters. The characters
in the SRC typically represent the reference code type and the unit reference
code (URC):
For SRCs displayed on the control panel, the first four characters designate
the reference code type and the second four characters designate the URC.
For SRCs displayed on software displays, characters 1 through 4 of word
1 designate the reference code type and characters 5 through 8 of word 1 designate
the URC.
Note:
For partition firmware SRCs (AAxx, BAxx, and DAxx) and
service processor SRCs (A1xx and B1xx), only the first two characters of the
SRC indicate the necessary action. For partition firmware SRCs that begin
with 2xxx, only the first character indicates the necessary action. In these
cases, the term URC does not apply.
A reference code that is 6 or 8 characters long and appears in either of
the following formats (xxxxxx or xxxxxxxx) is an SRC, unless it fits one of
the following conditions:
An 8-character code that begins with a C (except CB) or D (except DA)
is a progress code
An 8-character code that begins with an H is a Hardware Management Console (HMC) error
code or message
A 6-character code that begins with a zero (0) and does not include a
hyphen is an HMC error code
A code that begins with a number sign character (#) represents an AIX®
diagnostics message.
Using the list of reference codes
The list of system reference codes is organized in hexadecimal sequence,
with numeric characters listed before alphabetic characters. Each entry in
the list represents the first four characters (the reference code type) of
the SRC. The entries link to more information, typically a table that lists
the URCs that are associated with that reference code type.
Unless specified otherwise on a particular SRC page, the SRC tables contain
the following columns:
The Reference Code column contains numbers that represent the unit reference
code (URC).
The Description/Action column offers a brief description of the failure
that this SRC represents. It may also contain instructions for continuing
the problem analysis.
The Failing Item column represents functional areas of the system unit.
When available, the failing function code links to the FRU that contains this
function for each specific system unit.
To use the list of system reference codes, complete the following steps:
Click the item in the list of system reference codes that matches the
reference code type that you want to find.
Note:
The SRC tables support
only 8-character reference code formats. If the reference code provided contains
only 4 or 6 characters, contact your next level of support for assistance.
When the SRC table appears, select the appropriate URC from the first
column of the table. The tables list URCs in hexadecimal sequence, with numeric
characters listed before alphabetic characters.
Perform the action indicated for the URC in the Description/Action column
of the table.
If the table entry does not indicate an action or if performing the action
does not correct the problem, exchange the failing items or parts listed in
the Failing Item column in the order that they are listed. Use the following
instructions to exchange failing items:
Note:
Some failing items
are required to be exchanged in groups until the problem is solved. Other
failing items are flagged as mandatory exchange and must be exchanged before
the service action is complete, even if the problem appears to have been repaired.
For more information, see Block replacement of FRUs.
Exchange the failing item listed first.
If exchanging the first failing item does not correct the problem, reinstall
the original item and exchange the next failing item listed.
Continue to exchange and reinstall the failing items, one at a time, until
the problem is corrected. If exchanging the failing items does not correct
the problem, ask your next level of support for assistance.