I need to ask you this question:
Did you actually READ Martin's answers above?
Or did you read but battle to UNDERSTAND?
Please have another look at what Martin said:
The frequency is 'how often the backup will TRY and run"
Now please read it again. What does it mean? How does this answer your question?
Your frequency is 1 hour. So, a backup will be attempted every hour.
When will this happen? The first backup will be attempted shortly after the backup window opens and try every hour until the backup window closes.
What does this mean? How many backups can be expected in your 5-hour backup window?
Did you manage to work it out?
Does your logic also say 5 backups like mine does?
Example : frequency: 1 hour. Backup window: 1 am - 6 am (5 hours).
First backup will run as soon as the scheduler checks for backups that are due (it checks every 10 minutes).
So, if 1st backup starts at 01:05, when can the next backup be expected? And after that?
My logic says 02:05, 03:05, 04:05, 05:05. Do you agree?
Window closes at 06:00. No more backups will run against this schedule till tomorrow morning 1am.
Now what happens if tape drives are busy at 02:05 and this job must be queued? Say it only goes active at 02:45? When will the next backup be attempted?
1 hour later. And again 1 hour later after that job has gone active until the backup window closes.
Now apply the above logic to every scenario you can think of. If you don't and keep on asking about every possible scenario we will still be busy with this thread a year from now.
I also need to ask you to READ when we point you to TechNotes and Manuals. They are there for a reason. Experts have written these documents in plain, simple English that is not difficult to understand.
The document that helped me most to understand schedule frequency, is a section in an old NetBackup manual that is unfortunately no longer part of newer manuals. It contains a flowchart that makes it easy to understand and work out how it applies to your schedules.
This excellent, easy-to-understand flowchart can be found in NBU 5.1 Admin Guide II. Please download this pdf from http://www.symantec.com/docs/TECH32131 , then go to page 250 to find this flowchart.
I hope that we have managed to answer your question and that you will be be able to apply all of the explanations, examples and advice to your environment?