How does Data Deduplication work?
https://docs.microsoft.com/en-us/windows-server/storage/data-deduplication/understand
https://blogs.technet.microsoft.com/filecab/2012/05/20/introduction-to-data-deduplication-in-windows-server-2012/
https://docs.microsoft.com/en-us/windows-server/storage/data-deduplication/understand
https://blogs.technet.microsoft.com/filecab/2012/05/20/introduction-to-data-deduplication-in-windows-server-2012/