Writing to a tape still depends on how the job and media are set up. Is your daily backup (incrementals) set up as a separate job (ie. one job for incrementals and one for full backup)? If it's separate jobs, next question is - how is the job set up? Is the job set up for append or overwrite? That will determine how the job writes to the tape. All inventory does is let Backup Exec recognize there is a tape available and what the tape is. Without doing inventory when a tape is first put in, BE might say that you need to insert a tape. But usually it just says the tape is unrecognizable and may still try to backup to it. It just won't know what size the tape is, what the tape is labeled, how much room is left, etc.
-SQLBill
Posting advice: FAQ481-4875