IBM QS21 Service Guide - Page 44

Blade, server, Ethernet, controller, enumeration

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Blade server Ethernet controller enumeration The enumeration of the Ethernet controller or controller ports in a blade server is operating system dependent. You can verify the Ethernet controller or controller port designations that a blade server uses through your operating system settings. The routing of an Ethernet controller or controller port to a particular BladeCenter unit I/O bay depends on the type of Ethernet expansion card that is installed. You can verify which Ethernet-controller port in this blade server is routed to which I/O bay by using the following test: 1. Install only one Ethernet switch module or pass-thru module, in I/O bay 1. 2. Make sure that the ports on the switch module or pass-thru module are enabled (Switch Tasks → Management → Advanced Switch Management in the BladeCenter Management Module Web interface). 3. Enable only one of the Ethernet-controller ports on the blade server. Note the designation that the blade server operating system has for the controller port. 4. Ping an external computer on the network connected to the Ethernet switch module. If you can ping the external computer, the Ethernet-controller port that you enabled is associated with the switch module in I/O bay 1. The other Ethernet-controller port in the blade server is associated with the switch module in I/O bay 2. Communications from optional I/O expansion cards are routed to I/O bays 3 and 4. If you have installed an I/O expansion card on the blade server you can verify which controller port on an expansion card is routed to which I/O bay by performing the same test, using a controller on the expansion card and a compatible switch module or pass-thru module in I/O bay 3 or 4. 26 BladeCenter QS21 Type 0792: Problem Determination and Service Guide

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Blade
server
Ethernet
controller
enumeration
The
enumeration
of
the
Ethernet
controller
or
controller
ports
in
a
blade
server
is
operating
system
dependent.
You
can
verify
the
Ethernet
controller
or
controller
port
designations
that
a
blade
server
uses
through
your
operating
system
settings.
The
routing
of
an
Ethernet
controller
or
controller
port
to
a
particular
BladeCenter
unit
I/O
bay
depends
on
the
type
of
Ethernet
expansion
card
that
is
installed.
You
can
verify
which
Ethernet-controller
port
in
this
blade
server
is
routed
to
which
I/O
bay
by
using
the
following
test:
1.
Install
only
one
Ethernet
switch
module
or
pass-thru
module,
in
I/O
bay
1.
2.
Make
sure
that
the
ports
on
the
switch
module
or
pass-thru
module
are
enabled
(
Switch
Tasks
→
Management
→
Advanced
Switch
Management
in
the
BladeCenter
Management
Module
Web
interface).
3.
Enable
only
one
of
the
Ethernet-controller
ports
on
the
blade
server.
Note
the
designation
that
the
blade
server
operating
system
has
for
the
controller
port.
4.
Ping
an
external
computer
on
the
network
connected
to
the
Ethernet
switch
module.
If
you
can
ping
the
external
computer,
the
Ethernet-controller
port
that
you
enabled
is
associated
with
the
switch
module
in
I/O
bay
1.
The
other
Ethernet-controller
port
in
the
blade
server
is
associated
with
the
switch
module
in
I/O
bay
2.
Communications
from
optional
I/O
expansion
cards
are
routed
to
I/O
bays
3
and
4.
If
you
have
installed
an
I/O
expansion
card
on
the
blade
server
you
can
verify
which
controller
port
on
an
expansion
card
is
routed
to
which
I/O
bay
by
performing
the
same
test,
using
a
controller
on
the
expansion
card
and
a
compatible
switch
module
or
pass-thru
module
in
I/O
bay
3
or
4.
26
BladeCenter
QS21
Type
0792:
Problem
Determination
and
Service
Guide