User's Manual

Replacing the failed component
CAUTION: Components can be damaged by electrostatic discharge (ESD). 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 instructions
Printed instructions are shipped with the replacement part. Instructions for all replaceable components
are also included on the documentation CD that ships with the EVA4400 and posted on the HP
website. For the latest information, HP recommends that you obtain the instructions from the HP
Business Support Center Manuals website at http://www.hp.com/support/manuals. Under Storage,
select Disk Storage Systems, and then under EVA Storage, select HP 4400 Enterprise Virtual Array.
The manuals page for the EVA4400 appears. Scroll to the Service and maintenance information
section where the following replacement instructions are posted:
• HP Controller Enclosure 4Gb Array Controller Replacement Instructions
• HP Controller Enclosure 4Gb Array Controller with Embedded Switch Replacement Instructions
• HP Controller Enclosure Battery Replacement Instructions
• HP Controller Enclosure Cache DIMM Replacement Instructions
• HP Controller Enclosure Fan Module Replacement Instructions
• HP Controller Enclosure LED Display Replacement Instructions
• HP Controller Enclosure Management Module Replacement Instructions
• HP Controller Enclosure Midplane Replacement Instructions
• HP Controller Enclosure Power Supply Replacement Instructions
• HP Controller Enclosure Riser Assembly Replacement Instructions
• HP Disk Enclosure Backplane Replacement Instructions
• HP Disk Enclosure Fan Module Replacement Instructions
• HP Disk Enclosure Front UID Interconnect Board (with cable) Replacement Instructions
• HP Disk Enclosure Front UID Replacement Instructions
Replacing the failed component 73