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Dell Chassis Management Controller Version 3.10 for Dell EMC PowerEdge VRTX User's Guide

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Server Power Reduction to Maintain Power Budget

CMC reduces power allocations of low-priority servers, when additional power is required to maintain the system power consumption within the user-configured System Input Power Cap. For example, when a new server is engaged, CMC may decrease power to low-priority servers to allow more power for the new server. If the amount of power is still insufficient after reducing power allocations of the lower priority servers, CMC lowers the performance of servers until sufficient power is freed to power the new server.

CMC reduces server power allocation in two cases:
  • Overall power consumption exceeds the configurable System Input Power Cap .
  • A power failure occurs in a non-redundant configuration.

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