5.
For
problems
affecting
only
the
CD
or
DVD
drive:
a.
Make
sure
that:
v
The
CD
or
DVD
is
inserted
correctly
in
the
drive.
If
necessary,
insert
the
end
of
a
straightened
paper
clip
into
the
manual
tray-release
opening
to
eject
the
CD
or
DVD.
The
drive
LED
light
flashes
once
per
second
when
the
CD
or
DVD
is
inserted.
v
The
CD
or
DVD
is
clean
and
not
damaged.
(Try
another
CD
or
DVD
if
you
have
one.)
v
The
software
program
is
working
properly.
b.
Continue
with
step
6.
6.
For
problems
affecting
one
or
more
of
the
removable
media
drives:
a.
Reseat
the
following
components:
1)
Removable-media
drive
cable
(if
applicable)
2)
Removable-media
drive
3)
Media
tray
cable
(if
applicable)
4)
Media
tray
b.
Replace
the
following
components
one
at
a
time,
in
the
order
shown,
restarting
the
blade
server
each
time:
1)
Removable-media
drive
cable
(if
applicable)
2)
Media
tray
cable
(if
applicable)
3)
Removable-media
drive
4)
Media
tray
c.
Continue
with
step
7.
7.
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).
8.
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
“Removable-media
drive
problems”
on
page
35
or
“Universal
Serial
Bus
(USB)
port
problems”
on
page
37.
Network
connection
problems
To
check
for
network
connection
problems,
complete
the
following
steps
until
the
problem
is
solved:
1.
Make
sure
that:
v
The
network
cables
are
securely
connected
to
the
I/O
module.
v
Power
configuration
of
the
BladeCenter
unit
supports
the
I/O
module
configuration.
v
Installation
of
the
I/O-module
type
is
supported
by
the
BladeCenter
unit
and
blade
server
hardware.
v
The
I/O
modules
for
the
network
interface
that
is
being
used
are
installed
in
the
correct
BladeCenter
bays,
and
are
configured
and
operating
correctly.
v
The
settings
in
the
I/O
module
are
correct
for
the
blade
server
(settings
in
the
I/O
module
are
specific
to
each
blade
server).
2.
Check
for
correct
I/O-module
operation;
troubleshoot
and
replace
the
I/O
module
as
indicated
in
the
documentation
for
the
I/O
module.
54
BladeCenter
LS21
Type
7971
and
LS41
Type
7972:
Problem
Determination
and
Service
Guide
Summary of Contents for LS21 - BladeCenter - 7971
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