What is De-duplication?
Our block-level de-duplication backs up only those portions of files that have changed since the previous backup. This means you don’t needlessly backup the same unchanged data again and again. This increases efficiency by reducing the amount of data that is transferred for each backup, and reduces your storage space by not storing duplicate data. An added benefit is that this capability enables you to retrieve previous versions of your files (up to the limits specified in your data retention settings).
See our section on Scheduling and De-duplication in the RCBU Getting Started Guide.
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