Dominate the 2026 HCIA Storage Exam – Power Up Your Data Game!

Deduplication is all about reducing how much storage you need by removing duplicate data. When identical data blocks are found, only one copy is stored and the rest are represented by references to that single copy. That leads to significant space savings, especially in environments with lots of repeated data such as backups or multiple copies of the same files. Caching data in RAM, creating writable copies of volumes, or moving data to a remote site serve different goals (speed, replication, or volume cloning) and aren’t the primary outcome of deduplication.