I'm running BE 10 nor for two weeks and it performs nicely and I do have only one issue:
Sometimes I have to delete tapes in the library manually to make space for running backups (yes, I know this is not the perfect behaviour) when a job asks for a new tape.
With all versions up to now this was no problem, I started the delte job, it deleted the tape and everything went on.
With BE10 now this is no longer possible. The delete job apparantly waits for the backup job to finish berfore it starts. The backup job, of course, cannot finish, because it needs a new tape.
The only possibillity is to cancel the backup job (unless I do have a scratch tape somewhere outside and put it in).
(normal setup W2k3 server with all patches, latest library and drive firmware, BE 10 latest release, HP 5052 library with one SDLT II drive)
greetings
Peter