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2-6 SPARC Enterprise M4000/M5000 Servers Site Planning Guide • April 2007
2.4 Facility Power Requirement
To prevent catastrophic failures, the design of your power system must ensure that
adequate power is provided to your midrange servers. Use dedicated AC breaker
panels for all power circuits that supply power to your server. Electrical work and
installations must comply with applicable local, state, or national electrical codes.
2.4.1 Circuit Breaker Capacity and Characteristics
Qualified equipment racks housing these midrange servers require their own
customer-supplied circuit breaker and AC receptacle for each power cord. Provide a
stable power source, such as an uninterruptible power system (UPS), to reduce the
possibility of component failures. If the computer equipment is subjected to repeated
power interruptions and fluctuations, it is susceptible to a higher component failure
rate than it would be with a stable power source.
Note – If the appropriate electrical receptacle is not available in your country, the
connector may be removed from the cord. The cord can then be permanently
connected to a dedicated branch circuit by a qualified electrician. Check local
electrical codes for proper installation requirements.
2.4.2 Grounding
Both midrange servers are shipped with grounding-type (three-wire) power cords.
Always connect the cords into grounded power outlets. Each power cord will also
supply your server with proper earth ground.
Contact your facilities manager or a qualified electrician to determine what type of
power is supplied to your building.