Replacing the failed component
CAUTION: Components can be damaged by electrostatic discharge. Use proper anti-static
protection.
• Always transport and store CRUs in an ESD protective enclosure.
• Do not remove the CRU from the ESD protective enclosure until you are ready to install it.
• Always use ESD precautions, such as a wrist strap, heel straps on conductive flooring, and
an ESD protective smock when handling ESD sensitive equipment.
• Avoid touching the CRU connector pins, leads, or circuitry.
• Do not place ESD generating material such as paper or non anti-static (pink) plastic in an ESD
protective enclosure with ESD sensitive equipment.
• HP recommends waiting until periods of low storage system activity to replace a component.
• When replacing components at the rear of the rack, cabling may obstruct access to the
component. Carefully move any cables out of the way to avoid loosening any connections.
In particular, avoid cable damage that may be caused by:
◦ Kinking or bending.
◦ Disconnecting cables without capping. If uncapped, cable performance may be impaired
by contact with dust, metal or other surfaces.
◦ Placing removed cables on the floor or other surfaces, where they may be walked on or
otherwise compressed.
• Replacement procedures are provided with each component. You can also download the
following replacement instructions from the Manuals page of the HP Business Support Center
website. See “Related information” (page 107) for more information.
◦ HP Controller Blower Replacement Instructions
◦ HP Controller Enclosure Cache Battery Replacement Instructions
◦ HP Controller Power Supply Replacement Instructions
◦ HP Disk Enclosure Power Supply/Blower Replacement Instructions
◦ HP Fibre Channel Disk Drive Replacement Instructions
◦ HP Operator Control Panel Replacement Instructions
Returning the defective part
In the materials shipped with a replacement CSR part, HP specifies whether the defective component
must be returned to HP. Where required, you must ship the defective component back to HP within
a defined period of time, normally five (5) business days. The defective component must be returned
with the associated documentation provided in the shipping material. Failure to return the defective
component may result in HP billing you for the replacement. With a customer self repair, HP will
pay all shipping and component return costs and determine the courier/carrier to be used.
106 Customer replaceable units
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