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

Power Supply Redundancy Policy

The power supply redundancy policy is useful when redundant power grids are not available, but you may want to be protected against a single PSU failure bringing down your servers in a modular enclosure. The highest capacity PSU is kept in online reserve for this purpose. This forms a Power Supply redundancy pool.

PSUs beyond those required for power and redundancy are still available and is added to the pool in the event of a failure.

Unlike Grid redundancy, when power supply redundancy is selected, CMC does not require the PSU units to be present in any specific PSU slot positions.

  • NOTE: Dynamic Power Supply Engagement (DPSE) allows PSUs to be placed in standby. The standby state indicates a physical state of PSUs that are not supplying power. When you enable DPSE, the extra PSUs may be placed in Standby mode to increase efficiency and save power.
  • NOTE: Modify the modular enclosure Redundancy Policy while the enclosure is powered off.

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