Log Name: Application
Source: Veritas System Recovery
Event ID: 100
Task Category: High Priority
Level: Information
Keywords: Classic
Description:
Error EBAB03F1: Following Operating System error occurred while performing requested operation: 'The operation was canceled by the user.'
Info 6C8F1C2F: Recovery point creation for job 'Drive Backup of System Reserved (*:\), (C:\)' was cancelled by the user.
Error E7D1001F: Unable to write to file.
Error E7D1003C: There is not enough space.
Error EBAB03F1: Following Operating System error occurred while performing requested operation: 'There is not enough space on the disk.'
This is by design.
If the user starts backing up by selecting "Run backup now" manually, when VSR detects the insufficient disk space on the backup destination, the following dialog is popped up for the purpose of the manual intervention. (Figure 1)
Figure 1

If pressing "Cancel" in the dialog, the backup job is canceled and the following event is logged in Event Viewer Application Log. At this time, an event is logged as "Level: Information" and "Description: Operation cancelled by user". (Figure 2)
Figure 2

Similarly, instead of users, VSR treats the scheduled backup job as Cancelled if insufficient disk space is detected on the destination during the scheduled backup. As a result, the event is logged as "Level: Information" and "Description: Operation cancelled by user" as well even though no user explicitly cancelled the job.