+Data redundancy is the practice of storing the same [Data](/wiki/data) in multiple locations or formats. This duplication often serves to enhance [Fault Tolerance](/wiki/fault_tolerance) and ensures continued [Data Availability](/wiki/data_availability) in case of loss, though it can increase storage requirements and complexity.
+## See also
+- [Normalization](/wiki/normalization)
+- [Backup](/wiki/backup)
+- [RAID](/wiki/raid)
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