IBM 8863 Service Guide - Page 50

Checkout, procedure, About, checkout, Performing

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Checkout procedure The checkout procedure is the sequence of tasks that you should follow to diagnose a problem in the server. About the checkout procedure Before performing the checkout procedure for diagnosing hardware problems, review the following information: v Read the safety information beginning on page vii. v The diagnostics programs provide the primary methods of testing the major components of the server, for example, the I/O board, Ethernet controller, keyboard, mouse (pointing device), serial ports, and hard disk drives. You can also use them to test some external devices. If you are not sure whether a problem is caused by the hardware or by the software, you can use the diagnostics programs to confirm that the hardware is working correctly. v When you run the diagnostics programs, a single problem might cause several error messages. If you receive several error messages, correct the cause of the first error message. The other error messages might not occur the next time you run the diagnostics programs. v Before running the diagnostics programs, you must determine whether the failing server is part of a shared hard disk drive cluster (two or more servers sharing external storage devices). If it is part of a cluster, you can run all diagnostics programs except the ones that test the storage unit (that is, a hard disk drive in the storage unit) or the storage adapter that is attached to the storage unit. The failing server might be part of a cluster if any of the following conditions is true: - You have identified the failing server as part of a cluster (two or more servers sharing external storage devices). - One or more external storage units are attached to the failing server and at least one of the attached storage units is also attached to another server or unidentifiable device. - One or more servers are located near the failing server. Important: If the server is part of a shared hard disk drive cluster, run one test at a time. Do not run any suite of tests, such as "quick" or "normal" tests, because this might enable the hard disk drive diagnostic tests. v If the server is suspended and a POST error code is displayed, see "Error logs" on page 18. If the server is suspended and no error message is displayed, see "Problem isolation tables" on page 35 and "Solving undetermined problems" on page 91. v For information about power-supply problems, see "Solving power problems" on page 89 and "Power-supply LEDs" on page 55. v For intermittent problems, check the error log; see "Error logs" on page 18 and "Diagnostic programs, messages, and error codes" on page 57. Performing the checkout procedure To perform the checkout procedure, complete the following steps: 001 IS THE SERVER PART OF A CLUSTER? 002 No. Go to step 004 . 003 Yes. Schedule maintenance. Shut down all failing systems that are related to the cluster. Go to step 004 . 34 IBM xSeries 366 Type 8863: Problem Determination and Service Guide

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Checkout
procedure
The
checkout
procedure
is
the
sequence
of
tasks
that
you
should
follow
to
diagnose
a
problem
in
the
server.
About
the
checkout
procedure
Before
performing
the
checkout
procedure
for
diagnosing
hardware
problems,
review
the
following
information:
v
Read
the
safety
information
beginning
on
page
vii.
v
The
diagnostics
programs
provide
the
primary
methods
of
testing
the
major
components
of
the
server,
for
example,
the
I/O
board,
Ethernet
controller,
keyboard,
mouse
(pointing
device),
serial
ports,
and
hard
disk
drives.
You
can
also
use
them
to
test
some
external
devices.
If
you
are
not
sure
whether
a
problem
is
caused
by
the
hardware
or
by
the
software,
you
can
use
the
diagnostics
programs
to
confirm
that
the
hardware
is
working
correctly.
v
When
you
run
the
diagnostics
programs,
a
single
problem
might
cause
several
error
messages.
If
you
receive
several
error
messages,
correct
the
cause
of
the
first
error
message.
The
other
error
messages
might
not
occur
the
next
time
you
run
the
diagnostics
programs.
v
Before
running
the
diagnostics
programs,
you
must
determine
whether
the
failing
server
is
part
of
a
shared
hard
disk
drive
cluster
(two
or
more
servers
sharing
external
storage
devices).
If
it
is
part
of
a
cluster,
you
can
run
all
diagnostics
programs
except
the
ones
that
test
the
storage
unit
(that
is,
a
hard
disk
drive
in
the
storage
unit)
or
the
storage
adapter
that
is
attached
to
the
storage
unit.
The
failing
server
might
be
part
of
a
cluster
if
any
of
the
following
conditions
is
true:
–
You
have
identified
the
failing
server
as
part
of
a
cluster
(two
or
more
servers
sharing
external
storage
devices).
–
One
or
more
external
storage
units
are
attached
to
the
failing
server
and
at
least
one
of
the
attached
storage
units
is
also
attached
to
another
server
or
unidentifiable
device.
–
One
or
more
servers
are
located
near
the
failing
server.
Important:
If
the
server
is
part
of
a
shared
hard
disk
drive
cluster,
run
one
test
at
a
time.
Do
not
run
any
suite
of
tests,
such
as
“quick”
or
“normal”
tests,
because
this
might
enable
the
hard
disk
drive
diagnostic
tests.
v
If
the
server
is
suspended
and
a
POST
error
code
is
displayed,
see
“Error
logs”
on
page
18.
If
the
server
is
suspended
and
no
error
message
is
displayed,
see
“Problem
isolation
tables”
on
page
35
and
“Solving
undetermined
problems”
on
page
91.
v
For
information
about
power-supply
problems,
see
“Solving
power
problems”
on
page
89
and
“Power-supply
LEDs”
on
page
55.
v
For
intermittent
problems,
check
the
error
log;
see
“Error
logs”
on
page
18
and
“Diagnostic
programs,
messages,
and
error
codes”
on
page
57.
Performing
the
checkout
procedure
To
perform
the
checkout
procedure,
complete
the
following
steps:
±001²
IS
THE
SERVER
PART
OF
A
CLUSTER?
±002²
No.
Go
to
step
±004²
.
±003²
Yes.
Schedule
maintenance.
Shut
down
all
failing
systems
that
are
related
to
the
cluster.
Go
to
step
±004²
.
34
IBM
xSeries
366
Type
8863:
Problem
Determination
and
Service
Guide