Home > Storage > PowerStore > Databases and Data Analytics > Dell PowerStore: Oracle Best Practices > Data encryption
Data at Rest Encryption (D@RE) is enabled by default on PowerStore. No configuration steps are necessary to protect the drives. A top concern for many businesses is application data security, which includes drive encryption requirements, specifically on data at rest. Lost or stolen data can critically damage a business to the point where it might not survive. Dell Technologies engineered PowerStore with D@RE by using self-encrypting drives and array-based, self-managed keys. When activated, data is written to disk using the 256-bit Advanced Encryption Standard (AES). This security feature is provided without adding overhead to administrative tasks or to the application. It also avoids potential performance impact to the application and has no performance impact on the array.