IBM BladeCenter T Type 8720 User Manual
Page 109
Table
7.
Light
path
diagnostics
(continued)
Lit
LED
Cause
Action
Critical
error
A
critical
system
error
has
occurred,
such
as
nonredundancy
on
the
power
modules
or
a
system
error
in
a
blade.
Note:
You
can
configure
the
critical
error
LED
to
be
either
red
or
amber
through
the
management
module.
v
Check
the
error
log
for
messages.
v
Look
for
an
error
LED
on
the
modules
and
blade
servers
to
locate
the
component:
–
If
the
error
LED
is
on
a
module,
follow
the
instructions
for
the
module
in
this
table.
–
If
the
error
LED
is
on
a
blade
server,
see
the
documentation
that
comes
with
the
blade
server.
Management
module
System
error
A
critical
error
has
occurred
in
the
management
module.
v
If
your
BladeCenter
T
unit
has
only
one
management
module:
1.
Try
reseating
the
management
module.
2.
Restart
the
management
module.
If
the
problem
remains,
replace
the
management
module.
v
If
your
BladeCenter
T
unit
has
two
management
modules,
the
BladeCenter
T
unit
continues
to
function
using
the
redundant
module.
Replace
the
failed
management
module.
Active
Primary
management
module.
If
your
BladeCenter
T
has
two
management
modules,
the
Active
LED
indicates
which
is
the
primary
management
module.
Power
module
System
error
A
critical
error
has
occurred
in
the
power
module.
Reseat
the
power
module.
If
the
problem
remains,
replace
the
module.
If
your
BladeCenter
T
unit
has
a
redundant
module
for
this
power
module,
the
BladeCenter
T
unit
continues
to
function
using
the
redundant
module.
Blower
module
System
error
The
blower
has
failed
or
is
operating
too
slowly.
Reseat
the
blower
module.
If
the
problem
remains,
replace
the
blower
module
as
soon
as
possible,
to
regain
cooling
redundancy.
The
BladeCenter
T
unit
continues
to
function.
The
redundant
blower
module
provides
cooling
to
the
BladeCenter
T
unit
and
blade
servers.
I/O
module
System
error
A
critical
error
has
occurred
in
the
I/O
module.
Reseat
the
I/O
module.
If
the
problem
remains,
replace
the
module.
Chapter
6.
Symptom-to-FRU
index
99