Lenovo NeXtScale n1200 Installation And Service Manual page 40

v Before you install optional hardware, make sure that the compute nodes are
v Observe good housekeeping in the area where you are working. Place removed
v Do not attempt to lift an object that you think is too heavy for you. If you have
v Make sure that you have an adequate number of properly grounded electrical
v Back up all important data before you make changes to disk drives.
v After the fan power control is installed, back up the chassis midplane VPD data
v Have a small flat-blade screwdriver available.
v To view the error LEDs on the system board and internal components, leave the
v You do not have to turn off the server to install or replace hot-swap power
v Before you remove a compute node from the chassis, you must shut down the
v Blue on a component indicates touch points, where you can grip the component
v Orange on a component or an orange label on or near a component indicates
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Lenovo NeXtScale n1200 Enclosure: Installation and Service Guide
Important: Some cluster solutions require specific code levels or coordinated
code updates. If the device is part of a cluster solution, verify that the latest level
of code is supported for the cluster solution before you update the code.
For additional information about tools for updating, managing, and deploying
firmware, see the ToolsCenter for System x and BladeCenter at
http://www.ibm.com/support/entry/portal/docdisplay?lndocid=TOOL-
CENTER
working correctly. Start the compute nodes, and make sure that the operating
system starts, if an operating system is installed, or that a 19990305 error code is
displayed, indicating that an operating system was not found but the compute
node is otherwise working correctly. If the compute node is not working
correctly, see Running DSA Preboot diagnostic programs for information about
how to run diagnostics.
covers and other parts in a safe place.
to lift a heavy object, observe the following precautions:
– Make sure that you can stand safely without slipping.
– Distribute the weight of the object equally between your feet.
– Use a slow lifting force. Never move suddenly or twist when you lift a heavy
object.
– To avoid straining the muscles in your back, lift by standing or by pushing
up with your leg muscles.
outlets for the server, monitor, and other devices.
immediately for future data migration in case of the fan power control
replacement (see "System information options" on page 81).
compute node connected to power.
supplies, hot-swap fans, fan power control, or hot-plug Universal Serial Bus
(USB) devices. However, you must turn off the server before you perform any
steps that involve removing or installing adapter cables and you must
disconnect the power source from the server before you perform any steps that
involve removing or installing a riser card.
operating system and turn off the compute node. You do not have to shut down
the chassis itself.
to remove it from or install it in the server, open or close a latch, and so on.
that the component can be hot-swapped, which means that if the server and
operating system support hot-swap capability, you can remove or install the
component while the server is running. (Orange can also indicate touch points
on hot-swap components.) See the instructions for removing or installing a
specific hot-swap component for any additional procedures that you might have
to perform before you remove or install the component.