Backup re-run if system was turned off

Hi,

I need some clarification of the following situation:

If the Virtual Machine where NetBackup Master and Media server located (on same server) is power off on the day  that the Monthly Full backup is scheduled to run, will NetBackup is smart enough to run the Monthly Full backup after the VM is being turned off 1 or 2 days later?

If Not, would turning on "Allow retries after runday" helps" ?

Note, I know ideally to leave system on 24/7 but it is not the case we can control over our clients.

Hope I can get some advice.

Thank you in advance.