Hi,
   To answer your second question, there is no way you can encrypt data only 
during cloning process. Since encryption is implemented using directives in 
NetWorker it can on;y be done during backup and not during the cloning process. 
As for the first question that you had, I believe that you will have to make 2 
consecutive full backups first to tape and the next to your Data Domain.

HTH,
Rovin D'Souza.

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