For anyone running the above products and allowing CA1 to manage their tapes
as EDM.  CA has found a problem with the deletion exit.  It is not checking
the EDMID.
This means that hsm tapes can be scratched by ADSM or vice-versa.  This
recently happened to us when running a DELETE VOLUMEHISTORY.  It appears
that our VOLHIST was out of SYNC.  Some of the tapes in volume history had
been reused by hsm.  When we began the cleanup of volume history, it
scratched many hsm tapes.
It also appears that ADSM scratched some of it's own STGPOOL tapes because
they were in VOLHIST as DB backup, export or dump  tapes.