Chapter 4. Removing and replacing BladeCenter components
Replaceable components are of three types:
v Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your
responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged
for the installation.
v Tier 2 customer replaceable unit: You can install a Tier 2 CRU yourself or
request IBM to install it, at no additional charge, under the type of warranty
service that is designed for your computer.
v Field replaceable unit (FRU): FRUs must be installed only by trained service
technicians.
See Chapter 3, “Parts listing,” on page 23 to determine whether a component is a
Tier 1 CRU, Tier 2 CRU, or FRU.
For information about the terms of the warranty and getting service and assistance,
see the Warranty and Support Information document.
Installation guidelines
Before you remove or replace a component, read the following information:
v Read the safety information that begins on page v and “Handling static-sensitive
devices” on page 30. This information will help you work safely.
v Observe good housekeeping in the area where you are working. Place removed
covers and other parts in a safe place.
v You do not have to disconnect the BladeCenter unit from power to install or
replace any of the hot-swap modules in the BladeCenter unit. You must to shut
down the operating system and turn off a hot-swap blade server before you
remove the blade server, but you do not have to remove power from the
BladeCenter unit itself.
v Do not attempt to lift an object that you think is too heavy for you. If you have
to lift a heavy object, observe the following precautions:
– Make sure that you 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.
v Make sure that you have an adequate number of properly grounded electrical
outlets for the BladeCenter unit.
v Back up all important data before you make changes to disk drives.
v Have a small flat-blade screwdriver available.
v Orange on a component or an orange label on or near a component indicates
that the component can be hot-swapped, which means that you can remove or
install the component while the BladeCenter unit 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.
© Copyright IBM Corp. 2010 29
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