Analyzing Spcn Errors On Secondary Drawers; Isolating The I/O Drawer Failure; Determining Location Code - IBM RS/6000 Enterprise Server M80 Service Manual

Analyzing SPCN Errors on Secondary Drawers

The drawer number of a secondary I/O drawer (which displays in the operator panel in the form U0.n,
where n is the drawer number) does not change unless a repair action or a configuration change has
occurred. However, after a secondary I/O drawer has been removed, added, or had its backplane
replaced, there is a window of time during the IPL process in which the drawer number may appear to be
out of range. For example, if there is one I/O drawer in the system and one is added, it may temporarily
be assigned a drawer number of 5 or greater. The drawer numbers are reallocated and finalized during the
latter stages of the boot process.
If a fatal SPCN error occurs while the drawer has a temporary number, the system halts with an
8-character error code displayed in the form 10n1xxxx, where n is the drawer number. To determine the
error, if n is not equal to 1, substitute the number 2 for n, then look up the error code in Chapter 5, "Error
Code to FRU Index," on page 159. Perform the indicated actions on the failing drawer.
If a nonfatal SPCN error occurs while the drawer has a temporary number, this temporary number may
appear as part of a location code in the service processor error log or while running AIX diagnostics. If the
nonfatal error became fatal or is the cause of a fatal error, the drawer address will have been resolved and
the original error log entry can be ignored.

Isolating the I/O Drawer Failure

The primary I/O drawer is drawer number 1, although it is not displayed on the operator panel.
To determine which I/O drawer is failing, you may find the attention LED on an I/O drawer indicates a fault.
Check the LEDs on the front of each I/O drawer to isolate failures to a single drawer. See "Primary I/O
Drawer Operator Panel" on page 20 and "Secondary I/O Drawer Operator Panel" on page 21 for the
location and meaning of the LEDs on the I/O drawer operator panels.

Determining Location Code

If you have an error code in the form 2xxx xxxx or Exxx, and no location code associated with it, the
location code may possibly be found in three places, depending on the state of the system:
v If the system will boot into AIX, the location code will be reported when error log analysis is run under
AIX diagnostics.
v If the system will boot into the system management services (SMS) menus, the SMS error log will
contain the location code associated with the error code. See "Display Error Log" on page 403.
v If the system halted when the error occurred, the error code and location can be found in the LCD
progress indicator log, which can be accessed using the service processor menus. See "System
Information Menu" on page 372, then select "Read Progress Indicator From Last System Boot". Find
the error code that directed you to this note in the list, and the location code should be a part of the
entry in the log.
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Service Guide