29-03-2017, 03:49 PM
Different data deduplication products use different methods of dividing data into elements or blocks or blocks, but each product uses some technique to create a signature or identifier or fingerprint for each data item. As shown in the following figure, the data store contains the three unique data elements A, B, and C with a different signature. These data element signature values are compared to identify duplicate data. After identifying the duplicate data, a copy of each item is retained, pointers are created for the duplicate items, and duplicate items are not stored.