Chapter
5.
Diagnostics
and
troubleshooting
This
chapter
provides
basic
troubleshooting
information
to
help
you
solve
some
common
problems
that
might
occur
while
setting
up
your
blade
server.
A
problem
with
the
BladeCenter
QS21
can
relate
either
to
the
BladeCenter
QS21
or
the
BladeCenter
unit.
A
problem
with
the
blade
server
exists
if
the
BladeCenter
unit
contains
more
than
one
blade
server
and
only
one
of
the
blade
servers
has
the
symptom.
If
all
of
the
blade
servers
have
the
same
symptom,
then
the
problem
relates
to
the
BladeCenter
unit.
For
more
information,
see
the
documentation
that
comes
with
your
BladeCenter
unit.
Note:
The
BladeCenter
QS21
is
supported
in
the
BladeCenter
H
Type
8852
unit
and
the
BladeCenter
HT
Type
8740
and
8750
(enterprise
environment
only)
unit.
However
you
can
put
other
blade
servers
compatible
with
the
BladeCenter
units
in
the
same
unit
as
a
BladeCenter
QS21.
Prerequisites
Before
you
start
problem
determination
or
servicing,
check
that:
v
The
BladeCenter
QS21
is
inserted
correctly
into
the
BladeCenter
unit
v
All
components
are
connected
correctly
v
The
BladeCenter
QS21
has
the
latest
firmware
updates.
These
include:
–
BMC
–
System
–
Gigabit
Ethernet
controller
–
SAS
expansion
card
(if
installed)
–
InfiniBand
high-speed
expansion
card
(if
installed)
Basic
checks
If
you
install
the
blade
server
in
the
BladeCenter
unit
and
the
blade
server
does
not
start,
always
perform
the
following
basic
checks
before
continuing
with
more
advanced
troubleshooting:
v
Make
sure
that
the
BladeCenter
unit
is
correctly
connected
to
a
power
source.
v
Reseat
the
blade
server
in
the
BladeCenter
unit.
v
If
the
power
on
LED
is
flashing
slowly,
the
blade
server
may
be
turned
off.
To
turn
on
the
blade
server,
see
“Turning
on
the
blade
server”
on
page
3
for
further
information.
v
If
you
have
just
added
a
new
optional
device
or
component,
make
sure
that
it
is
correctly
installed
and
compatible
with
the
blade
server
and
its
components.
If
the
device
or
component
is
not
compatible,
remove
it
from
the
blade
server,
reinstall
the
blade
server
in
the
BladeCenter
unit,
and
then
restart
the
blade
server.
v
Use
Advanced
Management
Module
to
check
that
the
blade
server
appears
in
the
list
of
blade
servers
available.
©
Copyright
IBM
Corp.
2006,
2008
51
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