Home > Storage > Unity XT > Virtualization, Cloud & Applications > Dell Unity XT: Microsoft SQL Server Best Practices > Data at Rest Encryption
Many SQL Server applications have data encryption requirements on data at rest. Data at Rest Encryption (D@RE) can be used as an encryption solution for SQL Server without requiring any database or application changes. This also avoids any potential performance impact to the database server or the applications and has no performance impact on the array.
Note: D@RE is a licensed feature. It must be selected during the ordering processes and enabled at system initialization. D@RE cannot be enabled later.