Writing deduplicated data to tape

Nope, but the concept of dedupe is the same across the board. Deduped data is rehydrated when being backed up to non-deduped storage.

The same holds true when backing up to a BE dedupe folder and then duplicating to tape...data gets rehydrated.

Thanks!

Whilst it is rehyrdated to store it on tape, usually the buigger problem is when you want to restore as they way the restore will work is that the full size of the file will be restored and then Windows Deduplication has to be forced to deduplicate the file again.

As such if your volume usage is currently that the non-deduplicated versions of the files would not fit on the volume and you restore all the files then the volume will fill up and the restore will fail. In this situation you would have to plan to restore some of the files, run a dedup now command against the volume and then restore the rest (possibly in multiple steps)