Removal and Replacement Procedures

Hot-Plug Power Supply

Observe the following cautions for AC power supplies:

CAUTION: Removing a power supply significantly changes the airflow within the enclosure. The system will shut down to prevent overheating unless the power supply is replaced within 5 minutes.

CAUTION: Handle the blower carefully to avoid damaging the housing.

•Do not press on the center section of the blower because this action can damage the blades. Press only on the outer edge of the blower.

•Do not rest the power supply on the blower because the weight of the power supply can damage the blower housing.

Observe these additional warnings and cautions for DC power supplies:

WARNING: A risk of personal injury from electric shock and hazardous energy levels exists. The installation of options and routine maintenance and service of this product must be performed by individuals who are knowledgeable about the procedures, precautions, and hazards associated with DC power products.

WARNING: To reduce the risk of electric shock, fire, and damage to the equipment, this product must be installed in accordance with the following guidelines:

•This power supply is intended only for installation in HP equipment located in a restricted access location.

•This power supply is not intended for direct connection to the DC supply branch circuit. It should be connected to a power distribution unit (PDU) that provides an independent overcurrent-protected output for each DC power supply. Each output overcurrent-protected device in the PDU must be suitable for interrupting fault current available from the DC power source and must be rated no more than 20A.

•This power supply is designed to be connected only to a DC power source that can be classified as SELV or TNV, in accordance with applicable national requirements for Information Technology Equipment and Telecommunications Equipment.

Generally, these requirements are based on the International Standard for Information Technology Equipment, IEC 60950, and/or the European Telecommunication Standard ETC 300 132-2. The DC source is to have one pole (Neutral/Return) reliably connected to earth ground in accordance with local/regional electric codes and/or regulations.

•The green/yellow cable of the power cord assembly must be connected to a suitable ground/earth terminal located within the rack or cabinet. This terminal must be connected to a suitable building ground/earth terminal in accordance with local/regional electric codes/regulations. Do not rely on the rack or cabinet chassis to provide adequate ground/earth continuity.

CAUTION: Do not operate the storage system with one AC power supply and one DC power supply installed.

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HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide