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Dell Chassis Management Controller Version 6.20 for PowerEdge M1000e User’s Guide

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No Redundancy Policy

The no redundancy mode is the factory default setting for three PSU configuration and indicates that the chassis does not have any power redundancy configured. In this configuration, the overall redundancy status of the chassis always indicates no redundancy. The figure below illustrates no redundancy mode is the factory default setting for three PSU configuration.

CMC does not require the PSU units to be present in any specific PSU slot positions when No Redundancy is configured.

  • NOTE: All PSUs in the chassis are Online if DPSE is disabled when in No Redundancy mode. When DPSE is enabled all active PSUs in the chassis are listed as Online and additional PSUs may be turned to Standby to increase the system's power efficiency.
Figure 1. No Redundancy with three PSUs in the chassis No Redundancy with three PSUs in the chassis

A PSU failure brings other PSUs out of Standby mode, as needed, to support the chassis power allocations. If you have four PSUs, and require only three, then in the event that one fails, the fourth PSU is brought online. A chassis can have all six PSUs online.

When you enable DPSE, the extra PSUs may be placed in Standby mode to increase efficiency and save power. For more information, see Default Redundancy Configuration .


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