replace
blades
or
management,
switch,
power,
or
blower
modules
in
hot-swap
bays
without
removing
power
from
the
BladeCenter
unit.
v
Redundancy
capabilities
The
redundant
components
in
the
rear
of
the
BladeCenter
unit
enable
continued
operation
if
one
of
the
components
fails.
Normally,
the
redundant
power
modules
and
blowers
share
the
load.
If
one
of
the
power
modules
or
blowers
fails,
the
non-failing
power
module
or
blower
handles
the
entire
load.
You
can
then
replace
the
failed
blower
or
power
module
without
shutting
down
the
BladeCenter
unit.
v
Redundant
network
connection
capabilities
Configuring
a
pair
of
Ethernet
switch
modules
in
switch-module
bays
1
and
2
identically
provides
support
for
Ethernet
failover
configured
on
blade
servers.
Likewise,
configuring
blade
server
I/O
expansion
options
for
failover
and
configuring
a
pair
of
switch
modules
in
switch-module
bays
3
and
4
identically,
provides
support
for
failover
on
I/O
expansion
options.
See
the
documentation
that
comes
with
your
I/O
expansion
and
switch
module
options
for
more
information
about
configuring
for
redundant
network
connections.
v
System-management
capabilities
The
BladeCenter
unit
comes
with
a
system-management
processor
in
the
management
module.
This
system-management
processor,
in
conjunction
with
the
system-management
processor
in
each
blade
server,
enables
you
to
remotely
manage
the
BladeCenter
unit
components
and
the
blade
servers.
The
management
module
also
multiplexes
the
keyboard,
mouse,
and
video
ports
across
all
blade
servers.
The
system-management
processor
in
each
blade
server
provides
blade
server
monitoring,
event
recording,
and
alert
capability.
v
Network
environment
support
The
BladeCenter
unit
supports
up
to
two
Gb
Ethernet
Switch
Modules
(in
switch
modules
bays
1
and
3).
Each
switch
module
provides
one
internal
connection
to
each
blade
server.
The
BladeCenter
unit
also
supports
up
to
two
additional
switch
modules
(in
switch
module
bays
3
and
4),
for
a
total
of
four
switch
modules.
Each
of
these
additional
switch
modules
provides
one
internal
connection
to
the
optional
I/O
expansion
card
installed
on
one
or
more
blade
servers.
Note:
The
two
additional
switch
modules
must
have
the
same
I/O
type,
such
as
Fibre
Channel,
and
must
match
the
network
interface
on
the
optional
I/O
expansion
cards
in
the
blade
servers.
2
BladeCenter
Type
8677:
Planning
and
Installation
Guide
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