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Dell SC400, SC420, and SC420F Expansion Enclosure Owner's Manual

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EMM Failover

Control and monitoring of the expansion enclosure elements can be transferred from one EMM to another in the event of an EMM failure.

In the event of an EMM failure, the functioning EMM activates the amber status LED of the failed EMM. The functioning EMM then manages all aspects of the expansion enclosure , including monitoring and controlling the expansion enclosure LEDs, power supply units, and fans.

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