In partial redundancy, there is one extra power supply for multiple switches. This scheme is also called 1:1 redundancy (or 1+1 redundancy sometimes). In full redundancy, every switch is attached to two power supplies, so that if one goes down, the other takes over. The power supply redundancy could be divided into two types, namely full redundancy and partial redundancy. Now, it is prevailing in many networking devices like network switches as well. It is usually used in servers and other highly important computers, to minimize the chance of a complete computer shutdown or failure. This makes sure that the device could operate normally even if one power supply fails. Each of the power supplies will have the capacity to run the device on its own. Then, what is a redundant power supply? How can we benefit from it?Ī redundant power supply is when a single piece of networking equipment operates using two or more physical power supplies. This may be a challenge when dealing with network applications that require redundant power to ensure reliability and continuous availability. Many network switches, especially old ones, have only a single power supply.
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