Encryption (policy attribute)
The Encryption attribute determines whether the backup should be encrypted by the client. When the server initiates the backup, it passes on the Encryption policy attribute to the client in the backup request.
The client compares the Encryption policy attribute to the Encryption host properties for the client. If the encryption permissions for the client are set to REQUIRED or ALLOWED, the policy can encrypt the backups for that client.
For additional encryption configuration information, see the NetBackup Security and Encryption Guide.