IBM 84885BU User Manual - Page 23

Diagnostic, tools, overview, error

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Diagnostic tools overview The following tools are available to help you diagnose and solve hardware-related problems: v POST error logs The power-on self-test (POST) generates beep codes and messages to indicate successful test completion or the detection of a problem. The POST error log contains the three most recent error codes and messages that the server has generated during POST. The system-error log contains all the error messages that were issued during POST. Note: The system-error log is available only with the Remote Supervisor Adapter II. See "POST error logs" for more information. v Diagnostic programs and error messages The server diagnostic programs are the primary method of testing the major components of the server (see "Diagnostic programs, error codes, and messages" on page 14). v System board error LEDs These LEDs can help to pinpoint the source of a hardware problem (see "System board error LEDs" on page 17). v Ethernet controller troubleshooting This section provides information about Ethernet problems (see "Troubleshooting the Ethernet controller" on page 21). POST error logs When you turn on the server, it performs a series of tests to check the operation of server components and some of the options installed in the server. This series of tests is called the power-on self-test, or POST. If POST finishes without detecting any problems, a single beep sounds, and the first screen of the operating system or application program appears. If POST detects a problem, more than one beep sounds, an error message appears on the screen, or both (see "Beep symptoms" on page 97 and "POST error codes" on page 99). Note: A single problem might cause several error messages. When this occurs, work to correct the cause of the first error message. After you correct the cause of the first error message, the other error messages usually will not occur the next time you run the test. The POST error log contains the three most recent error codes and messages that the system generated during POST. The system-error log contains all messages that were issued during POST and all system status messages from the service processor. Note: The system-error log is available only with the Remote Supervisor Adapter II. Chapter 3. Diagnostics 13

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Diagnostic
tools
overview
The
following
tools
are
available
to
help
you
diagnose
and
solve
hardware-related
problems:
v
POST
error
logs
The
power-on
self-test
(POST)
generates
beep
codes
and
messages
to
indicate
successful
test
completion
or
the
detection
of
a
problem.
The
POST
error
log
contains
the
three
most
recent
error
codes
and
messages
that
the
server
has
generated
during
POST.
The
system-error
log
contains
all
the
error
messages
that
were
issued
during
POST.
Note:
The
system-error
log
is
available
only
with
the
Remote
Supervisor
Adapter
II.
See
“POST
error
logs”
for
more
information.
v
Diagnostic
programs
and
error
messages
The
server
diagnostic
programs
are
the
primary
method
of
testing
the
major
components
of
the
server
(see
“Diagnostic
programs,
error
codes,
and
messages”
on
page
14).
v
System
board
error
LEDs
These
LEDs
can
help
to
pinpoint
the
source
of
a
hardware
problem
(see
“System
board
error
LEDs”
on
page
17).
v
Ethernet
controller
troubleshooting
This
section
provides
information
about
Ethernet
problems
(see
“Troubleshooting
the
Ethernet
controller”
on
page
21).
POST
error
logs
When
you
turn
on
the
server,
it
performs
a
series
of
tests
to
check
the
operation
of
server
components
and
some
of
the
options
installed
in
the
server.
This
series
of
tests
is
called
the
power-on
self-test,
or
POST.
If
POST
finishes
without
detecting
any
problems,
a
single
beep
sounds,
and
the
first
screen
of
the
operating
system
or
application
program
appears.
If
POST
detects
a
problem,
more
than
one
beep
sounds,
an
error
message
appears
on
the
screen,
or
both
(see
“Beep
symptoms”
on
page
97
and
“POST
error
codes”
on
page
99).
Note:
A
single
problem
might
cause
several
error
messages.
When
this
occurs,
work
to
correct
the
cause
of
the
first
error
message.
After
you
correct
the
cause
of
the
first
error
message,
the
other
error
messages
usually
will
not
occur
the
next
time
you
run
the
test.
The
POST
error
log
contains
the
three
most
recent
error
codes
and
messages
that
the
system
generated
during
POST.
The
system-error
log
contains
all
messages
that
were
issued
during
POST
and
all
system
status
messages
from
the
service
processor.
Note:
The
system-error
log
is
available
only
with
the
Remote
Supervisor
Adapter
II.
Chapter
3.
Diagnostics
13