Bull Escala BL460, Руководство по диагностике и обслуживанию, Страница: 39 / 266

Chapter 2. Diagnostics
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2.4 Reference codes
Reference codes are diagnostic aids that help you determine the source of a hardware or
operating system problem. To use reference codes effectively, use them in conjunction with
other service and support procedures.
The Escala BL460 blade server produces several types of codes.
Progress codes: The power-on self-test (POST) generates eight-digit status codes that are
known as checkpoints or progress codes , which are recorded in the management-module
event log. The checkpoints indicate which blade server resource is initializing.
Error codes: The First Failure Data Capture (FFDC) error checkers capture fault data, which
the baseboard management controller (BMC) service processor then analyzes. For
unrecoverable errors (UEs), for recoverable events that meet or exceed their service
thresholds, and for fatal system errors, an unrecoverable checkstop service event triggers
the service processor to analyze the error, log the system reference code (SRC), and turn
on the system attention LED.
The service processor logs the nine-word, eight-digit per word error code in the
management-module event log. Error codes are either system reference codes (SRCs) or
service request numbers (SRNs) . A location code might also be included.
Isolation procedures: If the fault analysis does not determine a definitive cause, the service
processor might indicate a fault isolation procedure that you can use to isolate the failing
component.
Viewing the codes
The Escala BL460 blade server does not display checkpoints or error codes on the
remote console. The shared Bull Blade Chassis - Enterprise video also does not display the
codes.
If the POST detects a problem, a 9-word, 8-digit error code is logged in the management-
module event log. A location code that identifies a component might also be included. See
“ Error logs ” on page 147 for information about viewing the management-module event
log.
Service request numbers can be viewed using the AIX diagnostics CD, or various operating
system utilities, such as AIX diagnostics or the Linux service aid “diagela”, if it is installed.