Missed Job alerts of Job warning category, are displayed in Backup Exec Active Alerts. This issue is seen if job schedule is configured in a way that it does not apply to the actual time of job run.
The scheduling options selected for this job do not allow it to start later than <time window start time>. It will be considered missed and rescheduled. Check the scheduling options to ensure that they allow enough time for the job to finish running before it is rescheduled.
Backup Exec Scheduler allows users to configure a time window within which a particular job should be run. Users can configure Backup Jobs to run on a specified time window. If a device or a system is not available during that time, the job is reported as missed and the error is displayed as above.
Due consideration should be taken when configuring devices and schedule in order to overcome the situation. Following are some points which user needs to keep in mind when configuring schedule for backup jobs:
Staggering the jobs
If there are fewer backup devices, then the user may want to stagger the jobs such that their schedule windows have minimal overlaps. For example, if there are 5 systems to be backed up in 12 hours and there is just one device available, scheduling needs to be done in a way that each backup job has a device available when needed. If all 5 jobs try to start at the same time, there is a possibility one or more jobs will not be able to acquire the device in within the designated time window and hence causing the job to go missed.
Notifications for Missed Jobs
Backup Exec allows users to configure automatic alerts notification to be sent if jobs are missed. This is available as a "Job Warning" alert category. For more details refer to related articles section.