An administrator is troubleshooting a failure in the data center in which a server shut down/turned off when utility power was lost The server had redundant power supplies. Which of the following is the MOST likely cause of this failure?
A.
The UPS batteries were overcharged.
B.
Redundant power supplies require 220V power
C.
Both power supplies were connected to the same power feed
The most likely cause of this failure is that both power supplies were connected to the same power feed, which means that they both lost power when utility power was lost. To prevent this from happening, redundant power supplies should be connected to different power feeds, preferably from different sources, such as a UPS or a generator. Verified References: [Redundant Power Supply Best Practices]
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