IBM 8862 Hardware Maintenance Manual - Page 26

operating-system

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6. For intermittent problems, check the error log; see "POST error logs" on page 17 and "Diagnostic programs and error messages" on page 22. Complete the following steps to perform the checkout procedure: 001 IS THE SERVER PART OF A CLUSTER? YES. Schedule maintenance for the server. Shut down all servers related to the cluster. Run the storage test. NO. Go to step 002 . 002 IF THE SYSTEM IS NOT PART OF A CLUSTER: If the operating system is running, complete the following steps: 1. Check the light path (see "Light path diagnostics" on page 18). 2. Check the service processor system-error logs: a. If the system-error log indicates a damaged field replaceable unit (FRU), replace the FRU, and run diagnostics to confirm that the problem has been solved. b. If the system-error log does not indicate a damaged FRU, see "Error symptoms" on page 121 and "Undetermined problems" on page 136. If the operating system is not running, complete the following steps: 1. Check the light path (see "Light path diagnostics" on page 18). 2. Check the service processor system-error logs. a. If the error log indicates a damaged field replaceable unit (FRU), replace the FRU, and run diagnostics to confirm that the problem has been solved. b. If the error log does not indicate a damaged FRU, check the operating-system event logs; if these logs do not specify a particular error, go to step 3. 3. Turn off the server and all external devices. 4. Check all cables and power cords. 5. Set all display controls to the middle position. 6. Turn on all external devices. 7. Turn on the server. 8. Watch the screen and the serial port for POST errors, and record any POST error messages that are displayed on the screen. If an error is displayed, look up the first error (see "POST error codes" on page 88). 9. Run diagnostics (see "Starting the diagnostic programs" on page 23). 003 DID THE DIAGNOSTIC PROGRAM START? NO. Find the failure symptom in "Error symptoms" on page 121. YES. Run the diagnostic programs. If necessary, see "Diagnostic programs and error messages" on page 22. If you receive an error, see Chapter 6, "Symptom-to-FRU index," on page 85. If the diagnostic programs were completed successfully and you still suspect a problem, see "Undetermined problems" on page 136. If the server does not turn on, see "Error symptoms" on page 121. 16 IBM xSeries 365 Types 8861, 8862: Hardware Maintenance Manual and Troubleshooting Guide

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6.
For
intermittent
problems,
check
the
error
log;
see
“POST
error
logs”
on
page
17
and
“Diagnostic
programs
and
error
messages”
on
page
22.
Complete
the
following
steps
to
perform
the
checkout
procedure:
±001²
IS
THE
SERVER
PART
OF
A
CLUSTER?
YES.
Schedule
maintenance
for
the
server.
Shut
down
all
servers
related
to
the
cluster.
Run
the
storage
test.
NO.
Go
to
step
±002²
.
±002²
IF
THE
SYSTEM
IS
NOT
PART
OF
A
CLUSTER:
If
the
operating
system
is
running,
complete
the
following
steps:
1.
Check
the
light
path
(see
“Light
path
diagnostics”
on
page
18).
2.
Check
the
service
processor
system-error
logs:
a.
If
the
system-error
log
indicates
a
damaged
field
replaceable
unit
(FRU),
replace
the
FRU,
and
run
diagnostics
to
confirm
that
the
problem
has
been
solved.
b.
If
the
system-error
log
does
not
indicate
a
damaged
FRU,
see
“Error
symptoms”
on
page
121
and
“Undetermined
problems”
on
page
136.
If
the
operating
system
is
not
running,
complete
the
following
steps:
1.
Check
the
light
path
(see
“Light
path
diagnostics”
on
page
18).
2.
Check
the
service
processor
system-error
logs.
a.
If
the
error
log
indicates
a
damaged
field
replaceable
unit
(FRU),
replace
the
FRU,
and
run
diagnostics
to
confirm
that
the
problem
has
been
solved.
b.
If
the
error
log
does
not
indicate
a
damaged
FRU,
check
the
operating-system
event
logs;
if
these
logs
do
not
specify
a
particular
error,
go
to
step
3.
3.
Turn
off
the
server
and
all
external
devices.
4.
Check
all
cables
and
power
cords.
5.
Set
all
display
controls
to
the
middle
position.
6.
Turn
on
all
external
devices.
7.
Turn
on
the
server.
8.
Watch
the
screen
and
the
serial
port
for
POST
errors,
and
record
any
POST
error
messages
that
are
displayed
on
the
screen.
If
an
error
is
displayed,
look
up
the
first
error
(see
“POST
error
codes”
on
page
88).
9.
Run
diagnostics
(see
“Starting
the
diagnostic
programs”
on
page
23).
±003²
DID
THE
DIAGNOSTIC
PROGRAM
START?
NO.
Find
the
failure
symptom
in
“Error
symptoms”
on
page
121.
YES.
Run
the
diagnostic
programs.
If
necessary,
see
“Diagnostic
programs
and
error
messages”
on
page
22.
If
you
receive
an
error,
see
Chapter
6,
“Symptom-to-FRU
index,”
on
page
85.
If
the
diagnostic
programs
were
completed
successfully
and
you
still
suspect
a
problem,
see
“Undetermined
problems”
on
page
136.
If
the
server
does
not
turn
on,
see
“Error
symptoms”
on
page
121.
16
IBM
xSeries
365
Types
8861,
8862:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide