Usually data in production systems are available in Tier 1 storage. To store data that has lesser value in the current operating context data archiving can be adopted (Tier 2 storages). It’s the best way to store ‘old’ data in the organization. And many experts conclude that only 20% of the data is mission critical and that justifies why we should perform database storage optimization for Tier 1 storages. EDMS systems that have data privacy protection enabled not only address ‘secure storage’ but also the optimized way to store and retrieve this 20% of vital enterprise data. Check out http://www.solix.com/data_privacy_oracle_ebusiness_suite.htm for more details.