In BRMS, you can start and run a system backup without having to use the interactive console monitor. This ability allows you to run your system backups unattended.
To run a fully automated backup, you must make sure
that you have enough tape capacity to ensure that your backup can run without
getting tape volume mount messages. For example, if you schedule an automated
system backup over the weekend, you need to verify that the tape device and
enough expired tapes are available before leaving for the weekend. You can
use the Global Policy Properties to ensure that you specify enough time for
the backup to run. 
To schedule a fully automated backup, follow these steps:
- In iSeries™ Navigator, expand Backup, Recovery and Media Services.
- Expand Backup Policies.
- Right-click the policy you want to run and select Schedule.
- On the Run Backup Policy *System - Backup Overrides window, deselect the Use interactive console monitor check box and click OK.