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The data reduction with Vembu applies to individual backup jobs, not as a whole. It is specific to the particular backup chain (full backup and incremental). If a new full backup gets scheduled, the older backup chain will reset and starts a new backup chain.

As per the design, a new folder gets created on the backup storage repository for every full backup, and the successive incremental will also get stored in the same folder.

Since you are using Vembu BDR Suite free edition, only the full backup will run on the selected backup interval, and that's the reason you are seeing a new folder created every day on the backup storage repository.

Vembu leverages variable-length inline deduplication. The data reduction rate depends on the size of the free RAM. Higher the size of free RAM, the higher the rate of data reduction.

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