Server Setup 33
When installing more than one server, you may need to use additional power
distribution devices to safely provide power to all devices. Observe the following
guidelines:
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Balance the server power load between available AC supply branch circuits.
Do not allow the overall system AC current load to exceed 80 percent of the
branch circuit AC current rating.
Do not use common power outlet strips for this equipment.
Provide a separate electrical circuit for the server.
Electrical Grounding Requirements
The server must be grounded properly for proper operation and safety. In the
United States, you must install the equipment in accordance with NFPA 70, 1999
Edition (National Electric Code), Article 250, as well as any local and regional
building codes. In Canada, you must install the equipment in accordance with
Canadian Standards Association, CSA C22.1, Canadian Electrical Code. In all
other countries, you must install the equipment in accordance with any regional
or national electrical wiring codes, such as the International Electrotechnical
Commission (IEC) Code 364, parts 1 through 7. Furthermore, you must be sure
that all power distribution devices used in the installation, such as branch wiring
and receptacles, are listed or certified grounding-type devices.
Because of the high ground-leakage currents associated with multiple servers
connected to the same power source, HP recommends the use of a PDU that is
either permanently wired to the building’s branch circuit or includes a
nondetachable cord that is wired to an industrial-style plug. NEMA locking-style
plugs or those complying with IEC 60309 are considered suitable for this
purpose. Using common power outlet strips for the server is not recommended.
Rack Planning Resources
The rack resource kit ships with all HP branded or Compaq branded 9000,
10000, and H9 series racks. A summary of the content of each resource follows:
Custom Builder is a web-based service for configuring one or many racks.
Rack configurations can be created using:
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