I store my Veeam backup repositories on external Exagrid units and then use another product to back that up to tape. Due to the large amount of data (nearly 20tb) the backup to tape job runs for several days and my nightly Veeam jobs make changes to these data volumes meaning the tape job runs even longer.
Is there a recommended set of required files that can be backed up rather than the full+incremental chains? I currently keep 25 copies, weekly full, and incrementals on all other days. The backup to tape job is only for archival purposes.