Server Redundancy

What Does Server Redundancy Mean?

Server redundancy refers to the amount and intensity of backup, failover or redundant servers in a computing environment. It defines the ability of a computing infrastructure to provide additional servers that may be deployed on runtime for backup, load balancing or temporarily halting a primary server for maintenance purposes.

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Techopedia Explains Server Redundancy

Server redundancy is implemented in an enterprise IT infrastructure where server availability is of paramount importance. To enable server redundancy, a server replica is created with the same computing power, storage, applications and other operational parameters.

A redundant server is kept offline. That is, it powers on with network/Internet connectivity but is not used as a live server. In case of failure, downtime or excessive traffic at the primary server, a redundant server can be implemented to take the primary server’s place or share its traffic load.

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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.