Technology has provided us with solutions to the challenges associated with this strategy. Capacity optimization should come in at least two forms of compression and deduplication. Tape and disk archive should no longer be looked at as competitors but complimentary to each other. IBM’s new tape based file system for LTO makes tape more viable than ever for long term data retention. Tape fills the intermediate role of storing data for 3-7 years and tape stores data for the remainder of the time. There are several solutions that would support automatically moving data from disk to tape after given timeframe.”]
Source: https://www.darkreading.com/database-security/containing-the-cost-of-keeping-data-forever—capacity