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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 3 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 "SPCN Error Codes" on page 169. Perform the indicated
actions on the failing drawer.
If a non-fatal 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 non-fatal error becomes 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 23 and
"Secondary I/O Drawer Operator Panel" on page 24 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 417.
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 382, then select "Read
Progress Indicator From Last System Boot". Find the error code in the list that
directed you to this note, and the location code should be a part of the entry in the
log.
164
Service Guide
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