Home > Storage > Unity XT > Virtualization, Cloud & Applications > Dell Unity XT: Oracle Database Best Practices > Data at Rest Encryption
Many Oracle database applications have data encryption requirements. Data at Rest Encryption (D@RE) is a controller-based encryption solution that can be used for Oracle databases without requiring any database or application changes.
Note: D@RE is a license-able feature and must be selected during the ordering process and licensed at system initialization. D@RE can only be enabled at the time of system installation with the appropriate license and cannot be enabled later.
If encryption is enabled, Dell Technologies recommends making external backups of the encryption keys after system installation, and immediately following any change in the system’s drive configuration. Changes to the system’s drive configuration would include such things as creating or expanding a storage pool, adding new drives, or replacing a faulted drive.
For more information about D@RE, see the Dell Unity: Data at Rest Encryption document.