- for Data Domain DD4200
Data Domain Extended Retention transparently incorporates two tiers of storage on a Data Domain system to achieve cost-effective scalability while delivering the throughput required ingesting hundreds of terabytes of backup data. This combination makes Data Domain systems the ideal tape elimination solution for long-term backup retention.
Data Domain Extended Retention provides transparent separation of short-term and long-term backup data by storing it in different tiers on Data Domain systems. Data is initially stored in the active tier for backup and operational recovery, and then moved to the retention tier that's optimized for long-term data retention - usually measured in years.