Duplicate Backup to Tape fails with ADAMM Error
I have running Backup Exec 2012 doing one day a full-backup and every other day a differential backup to disk. After B2D a duplicate job to tape runs. The backups where running a long time without problems. But now the duplicated job fails every day with error V-79-57344-37956
Final error: 0xe0009444 - The requested source duplicate backup sets catalog record could not be found. Perhaps the media containing the source backup sets was previously deleted.
Unable to determine ADAMM media identification. Catalog query failed
I already have checked this link, but this is not the solution für my problem. What can I do now?
Thanks and regards