Exclude Acronis program folders, executable files and program data from the antivirus check.
Each Acronis backup plan consists of one or more tasks: backup task, replication task, conversion task, validation task etc. If you start any action from the plan manually (button 'Run') you will be able to see which tasks are available in the specified plan.
After installing any version of Acronis Backup and configuring scheduled packup plan you may observe any of the following issues:
- tasks disappear after a while;
- scheduled tasks do not run at all;
- some or all options are missing in the backup plan when trying to select them manually;
- there are doubled tasks if you try to choose an option manually in the backup plan;
- Task With ID XXX Does Not Exist errors in log.
After configuring backup plans on Acronis Management Server (AMS) or local machine with Acronis agent (MMS) each Acronis task is saved as xml file on the agent and centralized plans are saved in db3 sqlite database on the AMS in the following locations:
Windows Vista, 7, 8, 8.1, Server 2008, 2012: \ProgramData\\Acronis\AMS\dml_objects.db3
Windows XP, 2003: \Documents and Settings\All Users\Application Data\Acronis\AMS\dml_objects.db3
- MMS: .xml files in
Windows Vista, 7, 8, 8.1, Server 2008, 2012: \ProgramData\Acronis\BackupAndRecovery\MMS\TaskStorage
Windows XP, 2003: \Documents and Settings\All Users\Application Data\Acronis\BackupAndRecovery\MMS\TasksStorage
If these xml files become corrupt or missing, information about tasks can be shown incorrectly or tasks dissappear from Acronis GUI.
In the most cases xml files are being deleted or modified by antivirus software if Acronis files and executables are not excluded from the antivirus check.
Exclude Acronis program folders, executable files and program data as described in this article: Exclude Program Folders and Executables from Security Programs.
After excluding Acronis data from antivirus check recreate existing backup plans. This way all tasks should become available again.
If you have 'Task With ID XXX Does Not Exist' messages, delete old tasks as described in this article.
If the AMS database got corrupt it should be investigated separately.
If the above solution does not help or the issue differs from the described one please collect System Report from AMS and MMS agent, exported backup plan and Process Monitor Log gathered at the scheduled task start and contact Acronis Support.
Currently it is not possible to prevent file deletion or corruption caused by antivirus software. In the next versions of Acronis Backup & Recovery structure of backup plans and tasks will be changed, which should prevent task deletion by antivirus software.