Oracle Exadata Storage Server X7-2 EF, Installation Manual

Page: 19 / 90

Electrical Requirements
Facility Power Guidelines
Electrical work and installations must comply with applicable local, state, or national electrical
codes. To determine the type of power that is supplied to the building, contact your facilities
manager or qualified electrician.
To prevent failures:
■
Design the input power sources to ensure adequate power is provided to the power
distribution units (PDUs).
■
Use dedicated AC breaker panels for all power circuits that supply power to the PDU.
■
When planning for power distribution requirements, balance the power load between
available AC supply branch circuits.
■
In the United States and Canada, ensure that the current load of the overall system AC input
does not exceed 80 percent of the branch circuit AC current rating.
PDU power cords for the Oracle Rack Cabinet 1242 and Sun Rack II are 4 meters (13.12 feet)
long, and 1 to 1.5 meters (3.3 to 4.9 feet) of the cord might be routed in the rack cabinet. The
installation site AC power receptacle must be within 2 meters (6.6 feet) of the rack.
Circuit Breaker and UPS Guidelines
To prevent failures:
■
Ensure that the design of your power system provides adequate power to the server.
■
Use dedicated AC breaker panels for all power circuits that supply power to the server.
■
Ensure that electrical work and installations comply with applicable local, state, or national
electrical codes.
Ensure that the electrical circuits for the server are grounded.
■
Provide a stable power source, such as an uninterruptable power supply (UPS) to reduce
the possibility of component failures. If computer equipment is subjected to repeated power
interruptions and fluctuations, then it is susceptible to a higher rate of component failure.
Grounding Guidelines
Use the following guidelines for grounding the server:
■
Always connect the cords to grounded power outlets.
Preparing for Server Installation 19