HP Surestore 64 FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availabil - Page 164
Task 14: Plan AC Power, connected to a separate power circuit, or both should be connected to an
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Configuration Planning Tasks Task 14: Plan AC Power Plan for facility power sources for each equipment rack. Directors and switches in the rack operate at 50 to 60 Hertz (Hz) and 100 to 240 volts alternating current (VAC), and require a minimum dedicated 5-ampere service. If two power sources are supplied (optional but recommended for high availability), the equipment rack contains two customer-specified external power cords. Each cord should be connected to a separate power circuit, or both should be connected to an uninterruptable power supply (UPS). Several types of power cables and plugs are available to meet local electrical requirements. WARNING: An insulated grounding conductor identical in size, insulating material, and thickness to the grounded and ungrounded branch-circuit supply conductors (except it is green, with or without one or more yellow stripes) shall be installed as part of the branch circuit supplying the product. The grounding conductor described shall be connected to ground at the product, or if supplied by a separately derived system, at the supply transformer or motor generator. The plug receptacles near the product shall all be a grounding type, and grounding conductors serving these receptacles shall be connected to ground at the product. Keep all power cables out of high-traffic areas for safety and to avoid power interruption caused by accidentally unplugging the product or equipment rack. 164 SAN High Availability Planning Guide