You
can
also
press
keyboard
keys
in
the
following
sequence
to
switch
keyboard/video/mouse
control
between
blade
servers:
NumLock
NumLock
blade_server_number
Enter
Where
blade_server_number
is
the
two-digit
number
for
the
blade
bay
in
which
the
blade
server
is
installed.
Although
the
keyboard
that
is
attached
to
the
BladeCenter
unit
might
be
a
PS/2
style
keyboard,
internal
communication
with
it
is
through
the
USB.
The
operating
system
in
the
blade
server
must
provide
USB
support
for
the
blade
server
to
recognize
and
use
the
keyboard
and
mouse.
When
you
are
not
running
an
operating
system
that
has
USB
device
drivers,
such
as
in
the
following
situations,
the
keyboard
responds
very
slowly:
v
Running
the
blade
server
integrated
diagnostics
v
Running
a
BIOS
update
diskette
on
a
blade
server
v
Updating
the
diagnostics
on
a
blade
server
v
Running
the
Broadcom
firmware
CD
for
a
blade
server
If
there
is
no
response
when
you
press
the
keyboard/video/mouse
select
button,
you
can
use
the
management-module
Web
interface
to
determine
whether
local
control
has
been
disabled
on
the
blade
server.
If
you
install
Microsoft
Windows
on
the
blade
server
while
it
is
not
the
current
owner
of
the
keyboard,
video,
and
mouse,
a
delay
of
up
to
1
minute
occurs
the
first
time
you
switch
the
keyboard,
video,
and
mouse
to
the
blade
server.
During
this
one-time-only
delay,
the
blade
server
device
manager
enumerates
the
keyboard,
video,
and
mouse
and
loads
the
device
drivers.
All
subsequent
switching
takes
place
in
the
normal
keyboard-video-mouse
switching
time
frame
(up
to
20
seconds).
Media
Tray
select
button:
Press
this
button
to
associate
the
shared
BladeCenter
unit
removable-media
drives
and
USB
ports
with
the
blade
server.
The
LED
on
the
button
flashes
while
the
request
is
being
processed
then
is
lit
when
the
ownership
of
the
removable-media
drives
and
USB
ports
has
been
transferred
to
the
blade
server.
It
can
take
approximately
20
seconds
for
the
operating
system
in
the
blade
server
to
recognize
the
removable-media
drives
and
USB
ports.
The
operating
system
in
the
blade
server
must
provide
USB
support
for
the
blade
server
to
recognize
and
use
the
removable-media
drives
and
USB
ports.
The
BladeCenter
unit
uses
USB
for
internal
communication
with
these
devices.
If
there
is
no
response
when
you
press
the
media
tray
select
button,
you
can
use
the
management-module
Web
interface
to
determine
whether
local
control
has
been
disabled
on
the
blade
server.
Activity
LED:
When
this
green
LED
is
lit,
it
indicates
that
there
is
activity
on
the
hard
disk
drive,
flash
drive,
or
network.
Location
LED:
When
this
blue
LED
is
lit,
it
has
been
turned
on
by
the
system
administrator
to
aid
in
visually
locating
the
blade
server.
The
location
LED
on
the
BladeCenter
unit
will
be
lit
also.
The
location
LED
can
be
turned
off
through
the
management-module
Web
interface
or
through
IBM
Director
Console.
Information
LED:
When
this
amber
LED
is
lit,
it
indicates
that
information
about
a
system
error
for
the
blade
server
has
been
placed
in
the
system
error
log.
The
information
LED
can
be
turned
off
through
the
management-module
Web
interface
or
through
IBM
Director
Console.
Chapter
2.
Power,
controls,
jumpers,
switches,
and
indicators
15
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