Reliability, Availability, Serviceability – Lenovo RD120 User Manual
Page 21: Features
v
Systems-management
capabilities
The
server
supports
an
optional
IBM
Remote
Supervisor
Adapter
II
SlimLine.
When
you
use
this
adapter,
you
can
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.
v
TCP/IP
offload
engine
(TOE)
support
The
Ethernet
controllers
in
the
server
support
TOE,
which
is
a
technology
that
offloads
the
TCP/IP
flow
from
the
microprocessors
and
I/O
subsystem
to
increase
the
speed
of
the
TCP/IP
flow.
When
an
operating
system
that
supports
TOE
is
running
on
the
server
and
TOE
is
enabled,
the
server
supports
TOE
operation.
See
the
operating-system
documentation
for
information
about
enabling
TOE.
Note:
As
of
the
date
of
this
document,
the
Linux
operating
system
does
not
support
TOE.
Reliability,
availability,
and
serviceability
features
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
repair
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
baseboard
management
controller
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
Advanced
ECC
memory
protection
v
Error
codes
and
messages
v
Error
correcting
code
(ECC)
L2
cache
and
system
memory
v
Fully-buffered
DIMMs
(FBD)
support
v
Hot-swap
cooling
fans
with
speed-sensing
capability
v
Hot-swap
hard
disk
drives
v
Hot-spare
memory
v
Information
and
diagnostics
LED
panels
v
Memory
mirroring
v
Menu-driven
setup,
system
configuration,
and
redundant
array
of
independent
disks
(RAID)
configuration
programs
v
Parity
checking
or
CRC
checking
on
the
serially-attached
SCSI
(SAS)
bus
and
PCI
buses
v
Power
management:
compliance
with
Advanced
Configuration
and
Power
Interface
(ACPI)
v
Power-on
self-test
(POST)
v
Redundant
Ethernet
capabilities
with
failover
support
v
Redundant
power
supplies
and
redundant
hot-swap
fans
(ac
power
supplies
are
hot-swap)
v
Remind
button
to
temporarily
turn
off
the
system-error
LED
v
Remote
system
problem-determination
support
v
Standby
voltage
for
systems-management
features
and
monitoring
v
Startup
(boot)
from
LAN
through
Preboot
Execution
Environment
(PXE)
boot
agent
utility
or
dynamic
host
configuration
protocol/boot
protocol
(DHCP/BOOTP)
Chapter
1.
The
ThinkServer
RD120
server
7