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Correct, as long as you have the aged data option enabled in the advanced options of the backup history.
You can also run the Data Aging on Media Forecast report to get an idea of where the aged jobs are. Just make sure you choose the correct storage policies because it will take some time to build up the report.
Backup history from client of the tape copy and include the aged data option in advanced. Right click on the job and choose to view media. Greyed out would be aged. You may have tapes where not all the jobs are aged, they can't be reused until all jobs are aged as when it is first mounted to be written to the OML is overwritten so all pointers to ...
You have to view the job from the storage policy \ copy that you want to keep it on, primary vs aux essentially. If you are just looking at job history of the client that would encompass all the copies.