Chapter
2.
Installing
and
replacing
a
switch
module
This
chapter
provides
instructions
for
installing
a
switch
module
in
the
BladeCenter
unit,
and
for
removing
a
switch
module
from
the
BladeCenter
unit.
Note:
The
blade
server
or
BladeCenter
units
shown
in
the
illustrations
in
this
document
might
be
different
from
your
blade
server
or
BladeCenter
unit.
For
additional
information,
see
the
documentation
that
comes
with
the
blade
server
or
the
BladeCenter
unit.
Fibre
Channel
switch
modules
must
only
be
installed
in
I/O-module
bays
3
and
4
of
the
BladeCenter
unit.
Each
blade
server
that
you
want
to
communicate
with
must
have
a
Fibre
Channel
expansion
card
installed.
At
least
one
Fibre
Channel
expansion
card
must
be
installed
for
the
switch
module
to
communicate
with
a
blade
server.
Note:
If
you
are
installing
only
one
switch
module,
use
I/O
bay
3.
Installing
a
second
switch
module
enables
a
redundant
path
and
a
separate
Fibre
Channel
connection
from
the
blade
server
to
the
external
Fibre
Channel
network
and
SAN.
The
Fibre
Channel
expansion
card
has
two
2
or
4
Gbps
Fibre
Channel
ports.
At
least
one
switch
module
is
required
when
you
install
a
Fibre
Channel
expansion
card
in
the
blade
server.
Important:
v
When
the
switch
module
is
installed
in
a
BladeCenter
T
unit,
the
internal
ports
operate
at
2
Gbps,
and
the
external
ports
operate
at
speeds
up
to
4
Gbps.
v
The
switch
modules
and
all
blade
server
expansion
cards
in
the
BladeCenter
unit
must
use
the
same
interface
type.
Therefore,
you
must
install
Fibre
Channel
expansion
cards
when
you
install
Fibre
Channel
switch
modules
into
the
BladeCenter
unit.
The
following
table
summarizes
the
application
for
each
switch
module.
Bay
Fibre
Channel
switch-module
function
3
Port
0
connection
on
the
Fibre
Channel
expansion
card
in
the
BladeCenter
unit
4
Port
1
connection
on
the
Fibre
Channel
expansion
card
in
the
BladeCenter
unit
©
Copyright
IBM
Corp.
2005
11
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