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Data redundancy is a condition created within adatabase or data storage technology in which the same pieceof data is held in two separate places. This can mean two differentfields within a single database, or two different spots in multiplesoftware environments or platforms.
Just so, what is redundant capacity?
Available Redundant Capacity is the term used inpower planning that customers may not know, but they do ask for itdaily. What they ask is, “Where can I safely add new ITequipment without overloading and potentially bringing down myfacility?” Calculating ARC is the answer.
Also asked, what is the difference between redundancy and backup?
Redundancy is frequently confused withbackups. Whilst 'backup' is commonly about creatingcopies of data in preparation for a catastrophic loss,redundancy refers to more than just data storage. It focusesmore on the ability to provide a continuity of service, no matterwhat happens.
A redundant or indeterminate structure hasmore structure than is absolutely necessary. So, if somepart of the structure is damaged or removed, thestructure will not necessarily fail or collapse, as anotherpart can bear the load of the damaged or missingpiece.