How file size may affect the MSDP deduplication rate

The small file sizes that are combined with large file segment sizes may result in low initial deduplication rates. However, after the deduplication engine performs file fingerprint processing, deduplication rates improve. For example, a second backup of a client shortly after the first does not show high deduplication rates. But the deduplication rate improves if the second backup occurs after the file fingerprint processing.

How long it takes the NetBackup Deduplication Engine to process the file fingerprints varies.