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What Storage Encryption is

Storage Encryption is an optional feature that you can enable for additional data protection. It is available on certain supported storage controllers and disk shelves that contain disks with built-in encryption functionality.

In a standard storage environment, data is written to disk in cleartext format. This makes the data vulnerable to potential exposure to unauthorized users when disks removed from a storage system are lost or stolen.

When you enable Storage Encryption, the storage system protects your data at rest by storing it on self-encrypting disks.

The authentication keys used by the self-encrypting disks are stored securely on external key management servers.