We have lots of tapes in our on-site tape pool with Exchange agent data on
them. Doing a Q CONT shows that the date these were written was some time
during August.

Yesterday afternoon we changed the Backup Copy Group that is used for the
Exchange backups from 14 versions to 4 versions. ("Retain extra version" is
30 and "retain only version" is 60 days).
We changed the final line (excdsmc /adsmautodelete:* /ifolder:4) in the
script that is run on the Exchange Server to delete all but 4 versions.
The excdsm.log shows "22 backup objects of 32 examined were deleted".

Having done this, we expected the expire inventory processing this morning
to release these tapes - but it hasn't!. What else do we need to do to
expire these old tapes and allow them to be re-used??

Yesterday, from the GUI on the Exchange server you could see up to 14
versions that could be used to restore from. Today, the GUI only shows a
choice of 5 versions - so something has changed! But ADSM doesn't seem to
have released the tapes.....

Any thing else we need to do??

Cheers, Chris