Hi,
i don't know how net backup works. But if you could tell us how do you implement to start your backup, maybe someone could help you.
OK, my questions are,
how did you start shutting down your vm and start creating the snap?
Is there only a event that is created after the backup is completed and the snap is deleted?
Maybe you could create a job that check your vm if there is a snap or not?
I have some other things in mind but must know more about the how you start.
Frank