Hi and thanks for your patience,
-- Are these duplicate Media entries shown as offline and online ?
i guess they are online. The only thing that changes is the blue / and black colour, depending on the pool settings.
-- Have you activated Bar code and does Device support bar codes?
Yes, both. We use an exabyte vxa10 for about 2 years now.
The problem occured, when i replaced the tapes with a new set of tapes (all at once). The new tapes all became a new barcode range.
...and i will try to repair the database. It will take some days, until i can figure out, if something changed. I will give you a feeback ASAP.
Thnaks meanwhile.