Home > Storage > PowerMax and VMAX > Data Protection > Dell EMC PowerMax: End-to-End Efficient Encryption > Data at Rest Encryption
End-to-end efficient encryption uses Data at Rest Encryption (D@RE) for the on-array back-end at rest encryption. You must add D@RE at the initial array installation and configure it to use embedded key management. The embedded key manager with D@RE provides encryption for all data written to the system and requires little to no management after installation.
For more information about D@RE, see the document Dell EMC PowerMax and VMAX All Flash: Data at Rest Encryption.