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Chapter 5. Removing and replacing components
Use this information to install, remove, and replace components in the storage expansion node.
See Chapter 3 "Parts listing - storage expansion node" on page 19 to determine whether a component is a
Tier 1 CRU, Tier 2 CRU, or FRU that must be replaced only by a trained service technician.
For information about the terms of the warranty, see the Warranty Information document that comes with
the storage expansion node.
Installation guidelines
Use these guidelines before you install the storage expansion node or optional devices.
• Before you begin, read "Safety" on page iii and "Handling static-sensitive devices" on page 8. This
information will help you work safely.
• Before you install your new storage expansion node, take the opportunity to download and apply the
most recent firmware updates to the associated compute node. This step will help to ensure that any
known issues are addressed and that your system is ready to function at maximum levels of performance.
Attention: Before you connect a compute node to the storage expansion node, you must make sure
that the integrated management module II (IMM2) primary and backup firmware in the compute node is
at level ibm_fw_imm2_1aoo34x-1.xx_anyos_noarch or later. If the IMM2 firmware in the compute node
is at an earlier level when you connect the compute node to the storage expansion node, the firmware
in the storage expansion node will become corrupted and unrecoverable, and you will have to replace
the storage expansion node. For information about updating the firmware in the compute node, see
the compute node Installation and Service Guide.
• Observe good housekeeping in the area where you are working. Place removed covers and other parts
in a safe place.
• Back up all important data before you make changes to disk drives.
• Before you remove a compute node from the Flex System Enterprise Chassis, you must shut down the
operating system and turn off the compute node. You do not have to shut down the chassis itself.
• Blue on a component indicates touch points, where you can grip the component to remove it from or
install it in the compute node, open or close a latch, and so on.
• Orange on a component or an orange label on or near a component indicates that the component can
be hot-swapped, which means that if the compute node and operating system support hot-swap
capability, you can remove or install the component while the compute node is running. (Orange can
also indicate touchpoints 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.
• For a list of supported optional devices for the compute node, see
http://www.ibm.com/systems/info/x86servers/serverproven/compat/us.
System reliability guidelines
Use these guidelines to ensure that the storage expansion node meets the cooling and system reliability
requirements.
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