Data storage needs continue to grow unabated, straining backup and disaster recovery systems. Data deduplication takes advantage of the enormous amount of redundancy in business data. Eliminating duplicate data can reduce the amount of storage space necessary from a 10:1 to a 50:1 ratio. Server virtualization is another area rife with duplicate data, which can increase network storage requirements. Virtualization is a fantastic way to get the most out of CPU and memory, but without dedplication.”]
Source: https://www.csoonline.com/article/2125479/data-deduplication–reducing-storage-bloat.html