Support is already contacted. However, I'm unsure if my understanding between two parts of tape jobs is correct.
Since backup files are not that large (ca. 200GB), tapes have a lot of empty space, e.g. LTO-6 tape with one backup can still get 2,1TB on it.
This actually allows me, to keep multiple version of backups on a tape. What I want to achieve is that the the weekly/monthly tapes in a GFS media pool, looks like this:
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MARCH 2018 - MARCH 2019 - MARCH 2020 - EMPTY
My idea was to set the monthly media set overwrite protection period on 90 months and activated the option "Append backup files to incomplete tapes".
Is my understanding on this correctly or can cause this an issue, because tape is not expired yet, so tape will be rejected for the job?