I'm highlighting another improvement that debuts in NetBackup 6.5.2.
You have been able to set priority levels in NetBackup for a long time. The priorities could be set for a policy or for a particular backup or restore job. The higher the priority you assigned to a job the higher it would move in the queue of jobs to run. So if three jobs were all eligible to run at the same time and there was only one tape drive, the job with the highest priority would go first. There are other factors that can play into job priority like how long it has been since the last backup, but you get the idea.
In 6.5.2 you have some new options for job priorities.
First, you can change the default priority for each job type. This means that you can always set the priority for certain jobs like restore for instance to have a higher priority than duplications....