Error-log
analysis
is
done
in
concurrent
mode
when
you
select
the
Problem
Determination
option
on
the
DIAGNOSTIC
MODE
SELECTION
menu.
To
run
the
online
diagnostics
in
concurrent
mode,
you
must
be
logged
in
to
the
AIX
operating
system
and
have
proper
authority
to
issue
the
commands
(if
help
is
needed,
see
the
system
operator).
The
diag
command
loads
the
diagnostic
controller
and
displays
the
online
diagnostic
menus.
Running
the
Online
Diagnostics
in
Concurrent
Mode
To
run
online
diagnostics
in
concurrent
mode,
do
the
following:
1.
Log
in
to
the
AIX
operating
system
as
root
user,
or
use
CE
Login.
2.
Enter
the
diag
command.
3.
When
the
DIAGNOSTIC
OPERATING
INSTRUCTIONS
display,
follow
the
instructions
to
check
out
the
desired
resources.
4.
When
testing
is
complete,
use
the
F3
key
to
return
to
the
DIAGNOSTIC
OPERATING
INSTRUCTIONS.
Press
the
F3
key
again
to
return
to
the
AIX
operating
system
prompt.
Be
sure
to
vary
on
any
resource
that
you
had
varied
to
off.
5.
Press
Ctrl-D
to
log
off
from
root
user
or
CE
Login.
Maintenance
Mode
Maintenance
mode
runs
the
online
diagnostics
using
the
customer’s
version
of
the
AIX
operating
system.
This
mode
requires
that
all
activity
on
the
partition
running
the
AIX
operating
system
be
stopped
so
that
the
online
diagnostics
have
most
of
the
resources
available
to
check.
All
of
the
system
resources,
except
the
SCSI
adapters,
memory,
processor,
and
the
disk
drive
used
for
paging,
can
be
checked.
Error
log
analysis
is
done
in
maintenance
mode
when
you
select
the
Problem
Determination
option
on
the
DIAGNOSTIC
MODE
SELECTION
menu.
Use
the
shutdown
-m
command
to
stop
all
activity
on
the
AIX
operating
system
and
put
the
AIX
operating
system
into
maintenance
mode.
The
diag
command
is
then
used
to
invoke
the
diagnostic
controller
so
you
can
run
the
diagnostics.
After
the
diagnostic
controller
is
loaded,
follow
the
normal
diagnostic
instructions.
Documentation
for
the
AIX
operating
system
is
available
from
the
IBM
Eserver
pSeries
Information
Center
at
http://publib16.boulder.ibm.com/pseries/en_US/infocenter/base.
Select
AIX
documentation
.
The
AIX
Documentation
CD
contains
the
base
set
of
publications
for
the
operating
system,
including
system-management
and
end-user
documentation.
Running
the
Online
Diagnostics
in
Maintenance
Mode
To
run
the
online
diagnostics
in
maintenance
mode,
do
the
following:
1.
Stop
all
programs
running
on
the
partition
except
the
AIX
operating
system
(if
help
is
needed,
see
the
system
operator).
2.
Log
in
to
the
AIX
operating
system
as
root
user,
or
use
CE
Login.
3.
Type
the
shutdown
-m
command.
4.
When
a
message
indicates
the
system
is
in
maintenance
mode,
enter
the
diag
command.
Note:
It
might
be
necessary
to
set
TERM
type
again.
5.
When
DIAGNOSTIC
OPERATING
INSTRUCTIONS
screen
displays,
follow
the
displayed
instructions
to
check
out
the
desired
resources.
6.
When
testing
is
complete,
use
the
F3
key
to
return
to
DIAGNOSTIC
OPERATING
INSTRUCTIONS.
Press
the
F3
key
again
to
return
to
the
AIX
operating
system
prompt.
7.
Press
Ctrl-D
to
log
off
from
root
user
or
CE
Login.
Chapter
6.
Using
the
Online
and
Standalone
Diagnostics
221
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