3.
Check
for
correct
management-module
operation
(see
the
documentation
for
your
BladeCenter
unit).
Note:
Some
BladeCenter
unit
types
have
several
management-module
components
that
might
need
to
be
tested
or
replaced
(see
the
Installation
Guide
for
your
management
module
for
more
information).
4.
Replace
the
management
module
(see
the
documentation
for
your
BladeCenter
unit).
If
these
steps
do
not
resolve
the
problem,
it
is
likely
a
problem
with
the
blade
server.
See
“Network
connection
problems”
on
page
30.
Power
problems
To
check
for
power
problems,
make
sure
that:
v
The
LEDs
on
all
the
BladeCenter
power
modules
are
lit.
v
Power
is
being
supplied
to
the
BladeCenter
unit.
v
Installation
of
the
blade
server
type
is
supported
by
the
BladeCenter
unit.
v
The
BladeCenter
unit
has
the
correct
power
configuration
to
operate
the
blade
bay
where
your
blade
server
is
installed
(see
the
documentation
for
your
BladeCenter
unit).
v
The
BladeCenter
unit
power
management
configuration
and
status
support
blade
server
operation
(see
the
Management
Module
User’s
Guide
or
the
Management
Module
Command-Line
Interface
Reference
Guide
for
information).
v
Local
power
control
for
the
blade
server
is
correctly
set
(see
the
Management
Module
User’s
Guide
or
the
Management
Module
Command-Line
Interface
Reference
Guide
for
information).
v
The
BladeCenter
unit
blowers
are
correctly
installed
and
operational.
If
these
operations
do
not
solve
the
problem,
it
is
likely
a
problem
with
the
blade
server.
See
“Power
error
messages”
on
page
31
and
“Power
problems”
on
page
33.
Video
problems
To
check
for
video
problems,
complete
the
following
steps
until
the
problem
is
solved:
1.
Make
sure
that:
v
Both
the
blade
server
and
the
monitor
are
turned
on,
and
that
the
monitor
brightness
and
contrast
controls
are
correctly
adjusted.
v
The
keyboard/video/mouse
select
button
LED
on
the
front
of
the
blade
server
is
lit,
indicating
that
the
blade
server
is
connected
to
the
shared
BladeCenter
monitor.
v
The
video
cable
is
securely
connected
to
the
BladeCenter
management-module.
Non-IBM
monitor
cables
might
cause
unpredictable
problems.
v
The
monitor
works
with
another
blade
server.
Chapter
2.
Diagnostics
55
Summary of Contents for LS21 - BladeCenter - 7971
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