data redundancy

data redundancy

[′dad·ə ri‚dən·dən·sē]

(computer science)

The occurrence of values for data elements more than once within a file or database.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

data redundancy

(1) Writing the same data to two or more storage drives within the same system (see RAID).

(2) Writing data to two or more storage systems in different locations. For example, the same data can be stored on local drives as well as in the cloud or in a tape library (see LTO). See backup and data recovery.

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