Dell EMC Data Domain is a high-performance data storage solution designed for backup, archiving, and disaster recovery, with a key focus on data deduplication. The Data Domain Operating System (DD OS) is the intelligence that powers DellEMC Data Domain. It reduces storage space requirements by eliminating redundant copies of data through inline deduplication, which significantly optimizes capacity usage. This system allows organizations to store more data for longer periods without increasing storage costs. 

Data Domain integrates with various backup software, including Dell EMC Networker and Veritas NetBackup, providing fast and reliable backup and recovery options. Its efficiency and scalability make it a popular choice for enterprises looking to protect critical data while minimizing storage overhead.