IBM 79717au User Guide - Page 63

Blade, server, Ethernet, controller, enumeration, Configuring, array

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each server to attach to the same virtual LAN or subnet. Either 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, the secondary controller takes over. When the primary link is restored, the Ethernet traffic switches back to the primary Ethernet controller. (See the 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 that a blade server uses through the 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 I/O-module Tasks → Management → Advanced 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 or pass-thru module. If you can ping the external computer, the Ethernet controller that you enabled is associated with the switch module or pass-thru module in I/O-module bay 1. The other Ethernet controller in the blade server is associated with the switch module or pass-thru module in I/O-module bay 2. If you have installed an I/O-expansion card in the blade server, communications from the expansion card are routed to I/O-module bays 3 and 4, if these bays are supported by your BladeCenter unit type. You can verify which controller on the card is routed to which I/O-module bay by performing the same test and using a controller on the expansion card and a compatible switch module or pass-thru module in I/O-module bay 3 or 4. Configuring a RAID array Configuring a SAS RAID array applies to a blade server and MPE where a SAS hard disk drive is installed in both the blade server and the MPE unit. Two SAS hard disk drives can be used to implement and manage RAID level-0 (striping) or RAID level-1 (mirror) arrays in operating systems that are listed on the ServerProven list at http://www.ibm.com/servers/eserver/serverproven/compat/us/. Use the LSI Configuration Utility program to configure the SAS RAID (see "Using the LSI Logic Configuration Utility program" on page 52). If an optional BladeCenter Storage Expansion Unit 3 is installed, you can use it to control all of the SAS hard disk drives installed in the blade server. You enable this feature using the Configuration/Setup Utility program (see "Using the Configuration/Setup Utility program" on page 44). Chapter 4. Configuring the blade server 51

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each
server
to
attach
to
the
same
virtual
LAN
or
subnet.
Either
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,
the
secondary
controller
takes
over.
When
the
primary
link
is
restored,
the
Ethernet
traffic
switches
back
to
the
primary
Ethernet
controller.
(See
the
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
that
a
blade
server
uses
through
the
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
I/O-module
Tasks
→
Management
→
Advanced
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
or
pass-thru
module.
If
you
can
ping
the
external
computer,
the
Ethernet
controller
that
you
enabled
is
associated
with
the
switch
module
or
pass-thru
module
in
I/O-module
bay
1.
The
other
Ethernet
controller
in
the
blade
server
is
associated
with
the
switch
module
or
pass-thru
module
in
I/O-module
bay
2.
If
you
have
installed
an
I/O-expansion
card
in
the
blade
server,
communications
from
the
expansion
card
are
routed
to
I/O-module
bays
3
and
4,
if
these
bays
are
supported
by
your
BladeCenter
unit
type.
You
can
verify
which
controller
on
the
card
is
routed
to
which
I/O-module
bay
by
performing
the
same
test
and
using
a
controller
on
the
expansion
card
and
a
compatible
switch
module
or
pass-thru
module
in
I/O-module
bay
3
or
4.
Configuring
a
RAID
array
Configuring
a
SAS
RAID
array
applies
to
a
blade
server
and
MPE
where
a
SAS
hard
disk
drive
is
installed
in
both
the
blade
server
and
the
MPE
unit.
Two
SAS
hard
disk
drives
can
be
used
to
implement
and
manage
RAID
level-0
(striping)
or
RAID
level-1
(mirror)
arrays
in
operating
systems
that
are
listed
on
the
ServerProven
list
at
Use
the
LSI
Configuration
Utility
program
to
configure
the
SAS
RAID
(see
“Using
the
LSI
Logic
Configuration
Utility
program”
on
page
52).
If
an
optional
BladeCenter
Storage
Expansion
Unit
3
is
installed,
you
can
use
it
to
control
all
of
the
SAS
hard
disk
drives
installed
in
the
blade
server.
You
enable
this
feature
using
the
Configuration/Setup
Utility
program
(see
“Using
the
Configuration/Setup
Utility
program”
on
page
44).
Chapter
4.
Configuring
the
blade
server
51