IBM 8840 User Manual
v
Light
path
diagnostics
Light
path
diagnostics
provides
LEDs
to
help
you
diagnose
problems.
For
more
information,
see
the
section
about
light
path
diagnostics
in
the
Installation
Guide.
v
Redundant
connection
The
addition
of
an
optional
network
interface
card
(NIC)
provides
a
failover
capability
to
a
redundant
Ethernet
connection.
If
a
problem
occurs
with
the
primary
Ethernet
connection,
all
Ethernet
traffic
associated
with
this
primary
connection
is
automatically
switched
to
the
redundant
NIC.
If
the
applicable
device
drivers
are
installed,
this
switching
occurs
without
data
loss
and
without
user
intervention.
v
Redundant
cooling
and
power
capabilities
The
server
supports
up
to
12
hot-swap
fans,
which
provide
redundant
cooling.
The
server
supports
up
to
two
650-watt
power
supplies,
which
provide
redundancy
and
hot-swap
capability
for
a
typical
configuration.
v
ServeRAID
™
support
The
server
supports
ServeRAID
adapters
to
create
redundant
array
of
independent
disks
(RAID)
configurations.
v
Symmetric
multiprocessing
(SMP)
Your
server
supports
up
to
two
Intel
Xeon
microprocessors.
If
the
server
comes
with
only
one
microprocessor,
you
can
install
an
additional
microprocessor
to
enhance
performance
and
provide
SMP
capability.
v
Systems-management
capabilities
The
server
supports
an
optional
IBM
Remote
Supervisor
Adapter
II
SlimLine.
This
option,
when
used
with
the
integrated
baseboard
management
controller
that
comes
with
the
server,
enables
you
to
manage
the
functions
of
the
server
locally
and
remotely.
The
Remote
Supervisor
Adapter
II
SlimLine
also
provides
system
monitoring,
event
recording,
and
dial-out
alert
capability.
Reliability,
availability,
and
serviceability
Three
important
computer
design
features
are
reliability,
availability,
and
serviceability
(RAS).
The
RAS
features
help
to
ensure
the
integrity
of
the
data
that
is
stored
in
the
server,
the
availability
of
the
server
when
you
need
it,
and
the
ease
with
which
you
can
diagnose
and
correct
problems.
The
server
has
the
following
RAS
features:
v
Automatic
error
retry
and
recovery
v
Automatic
restart
after
a
power
failure
v
Backup
basic
input/output
system
(BIOS)
switching
under
the
control
of
the
service
processor
v
Baseboard
management
controller
(service
processor)
v
Built-in
monitoring
for
fan,
power,
temperature,
voltage,
and
power-supply
redundancy
v
Cable-presence
detection
on
most
connectors
v
Chipkill
™
memory
protection
v
Error
codes
and
messages
v
Error
correcting
code
(ECC)
L2
cache
and
system
memory
v
Hot-swap
cooling
fans
with
speed-sensing
capability
v
Hot-swap
hard
disk
drives
v
Information
and
light
path
diagnostics
LED
panels
v
Menu-driven
setup,
system
configuration,
and
redundant
array
of
independent
disks
(RAID)
configuration
programs
Chapter
1.
Introducing
the
IBM
xSeries
346
Type
8840
5