IBM Type 8720 Manual Do Utilizador
Rear
view
This
section
identifies
the
components
and
indicators
on
the
rear
of
the
BladeCenter
T
unit.
I/O module 2
I/O module 1
I/O module 4
ESD connector
I/O module 3
LAN module
KVM module
Blower module 2
Blower module 4
Blower module 1
Blower module 3
TOP
D
TOP
D
BTM
E
BTM
E
2
4
1
3
CRT
MJR
MNR
2
Alarms
1
Blower
modules
The
blower
modules
are
hot-swap
units
that
are
installed
into
the
rear
of
the
system.
The
BladeCenter
T
unit
comes
with
four
blowers
that
are
in
a
3+1
redundancy
configuration.
All
the
cooling
requirements
are
met
if
one
blower
fails.
All
blowers
contain
a
backflow
device
that
prevents
the
system
from
drawing
air
into
the
exhaust
port
of
a
failed
blower.
The
management
module
in
the
BladeCenter
T
unit
controls
the
blower
speed
and
detects
blower
failures.
Blower
Error LED
Power LED
Blower
LEDs:
The
LEDs
on
each
blower
provide
status
information
about
the
blower.
v
Power:
When
this
green
LED
is
lit,
it
indicates
that
the
blower
module
has
power.
v
Error:
This
amber
LED
is
lit
and
stays
lit
when
an
error
has
been
detected
in
the
blower.
The
system
error
LED
on
the
BladeCenter
system-status
panels
is
also
lit.
Chapter
1.
General
information
15