that
is
installed.
See
“Blade
server
Ethernet
controller
enumeration”
for
information
about
how
to
determine
the
routing
from
Ethernet
controller
to
I/O-module
bay
for
your
blade
server.
Note:
Other
types
of
blade
servers,
such
as
the
BladeCenter
HS20
Type
8678
blade
server,
that
are
installed
in
the
same
BladeCenter
unit
as
this
BladeCenter
HS40
Type
8839
blade
server
might
have
different
Ethernet
controller
routing.
See
the
documentation
that
comes
with
the
other
blade
servers
for
detailed
information.
You
do
not
need
to
set
any
jumpers
or
configure
the
controllers
for
the
blade
server
operating
system.
However,
you
must
install
a
device
driver
to
enable
the
blade
server
operating
system
to
address
the
Ethernet
controllers.
For
device
drivers
and
information
about
configuring
your
Ethernet
controllers,
see
the
Intel
Ethernet
Software
CD
that
comes
with
your
blade
server.
For
updated
information
about
configuring
the
controllers,
go
to
the
IBM
Support
Web
site
at
http://www.ibm.com/pc/support/.
Your
Ethernet
controllers
support
failover,
which
provides
automatic
redundancy
for
your
Ethernet
controllers.
Without
failover,
you
can
have
one
Ethernet
controller
from
each
server
attached
to
each
virtual
LAN
or
subnet.
With
failover,
you
can
configure
more
than
one
Ethernet
controller
from
each
server
to
attach
to
the
same
virtual
LAN
or
subnet.
Any
one
of
the
integrated
Ethernet
controllers
can
be
configured
as
the
primary
Ethernet
controller.
If
you
have
configured
the
controllers
for
failover
and
the
primary
link
fails,
a
secondary
controller
takes
over.
When
the
primary
link
is
restored,
the
Ethernet
traffic
switches
back
to
the
primary
Ethernet
controller.
(See
your
operating
system
device
driver
documentation
for
information
about
configuring
for
failover.)
Important:
To
support
failover
on
the
blade
server
Ethernet
controllers,
the
Ethernet
switch
modules
in
the
BladeCenter
unit
must
have
identical
configurations.
Blade
server
Ethernet
controller
enumeration
The
enumeration
of
the
Ethernet
controllers
in
a
blade
server
is
operating-system
dependent.
You
can
verify
the
Ethernet
controller
designations
a
blade
server
uses
through
your
operating-system
settings.
The
routing
of
an
Ethernet
controller
to
a
particular
I/O-module
bay
depends
on
the
type
of
blade
server.
You
can
verify
which
Ethernet
controller
is
routed
to
which
I/O-module
bay
by
using
the
following
test:
1.
Install
only
one
Ethernet
switch
module
or
pass-thru
module
in
I/O-module
bay
1.
2.
Make
sure
that
the
ports
on
the
switch
module
or
pass-thru
module
are
enabled
(click
Switch
Tasks
→
Management
→
Advanced
Switch
Management
in
the
management-module
Web-based
user
interface).
3.
Enable
only
one
of
the
Ethernet
controllers
on
the
blade
server.
Note
the
designation
that
the
blade
server
operating
system
has
for
the
controller.
4.
Ping
an
external
computer
on
the
network
connected
to
the
switch
module.
If
you
can
ping
the
external
computer,
the
Ethernet
controller
that
you
enabled
is
associated
with
the
switch
module
in
I/O-module
bay
1.
The
other
Ethernet
controller
in
the
blade
server
is
associated
with
the
switch
module
in
I/O-module
bay
2.
18
BladeCenter
HS40
Type
8839:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
Summary of Contents for HS40 - BladeCenter - 8839
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