When deduplicated data is copied by using the vol copy command, the copy of the data at the destination inherits all the deduplication attributes and storage savings of the source data.
The metadata created during a deduplication operation (fingerprint files and change log files) is located inside the FlexVol volume and in the active copy within the aggregate. Therefore, when you run the volume copy operation on a FlexVol volume, the fingerprint files and change log files are copied to the destination volume. After a volume copy operation, if deduplication is enabled on the destination volume, any new data written to the volume continues to be deduplicated.
The first deduplication operation that is run on the copied FlexVol volume automatically reconstructs the deduplication metadata in the aggregate based on the copy that is available in the volume.