Tapes Sync between DD and BRMS

Hello All,

Currently I have a set of AS400s backing up to a DD VTL via a BMRS library.

It works well, except for the fact that the BMRS database only keeps the tapes information before compression.

So, every day there is roughly 20TB of data going through. It uses 50 tapes. DD manages to compress it to around 600GB per day (2 tapes).

The problem is that, on BMRS side, it still shows that the backup used the 50 tapes. So basically now we are "running out of tapes" according to BMRS, but there are still about 50% tapes left in DD VTL.

Is there a way of correctly updating this information in a way that both sides are synchronized? Anyone with any experience in this?

Many thanks in advance

J