Data Deduplication is a process used to eliminate duplicate copies of data within a storage system. By identifying and removing redundant data, it helps to optimize storage space and improve efficiency. This technique is commonly used in backup and data management systems to ensure that only unique data is stored, reducing costs and enhancing performance. The process works by scanning data sets and keeping only one copy of identical data, while replacing duplicates with pointers to the original. This not only saves storage space but also speeds up data retrieval and backup processes, making it a valuable tool for organizations managing large volumes of information.