What is the sequence? (first startup)
- The first process start (manually) with full backup (example monday).
- Backup Exec grab the first tape (at random?) and write data.[In this case the tape reaches full capacity 800gb]
You will seldom if ever get 2:1 compression on your backups. If your tapes are 400/800, you will most likely get around 500-550 on them, so the first job will probably use two tapes. If you want to force Backup Exec to use a specific tape/tapes, you can re-label all mounted tapes in the order that you want them use. Then BackupExec will use them in that order
- the next day , start jobs incremental "Tuesday": automatically loads a second tape? at random?
Since you have separate media sets, then, yes BackupExec will start overwriting a new tape (based on thesame rules as above). You haven't mentioned whether your INCR jobs are overwrite or append, so let's assume the you use append. The third day (second INCR) backup exec will grab the tape used yesterday. If it fills up, it will start overwriting a third. On the fourth day, it will start with the tape used 2Incr. when that fills up it will start another etc.
