Acronis Management Server database accumulates entries with completed activities and accepted alerts, and can reach considerable size because of this. To reduce the size of Acronis Management Server database you can use a special script to clean up older entries.

Backup activity tab becomes empty after updating Acronis True Image 2018 to build 10410.

If for some reason you do not know the name of the agent who performed the operation, you can always check it in the Activities tab. To do this, click on the activity and the agent's name will be displayed in the activity details.

This is a known issue. Just stop the activity


  1. You have a virtual environment protected with Agent for VMware or Agent for Hyper-V
  2. When a backup plan is applied to two or more virtual machines, activities for backup progress are not shown on virtual machines; instead they are shown on Agent that runs on hypervisor level.
  3. Alternatively, warnings or activities are shown on incorrect virtual machine


Specifics of product architecture.


Activity (backup, validation, etc) fails with the following error:

Windows error: (0x80070570) The file or directory is corrupted and unreadable


From within the MassTransit Administrator Administrator, the MassTransit Log appears to not contain any data.



In rare cases, the Log window in the MassTransit Administrator may appear to not contain any data. To repair the log function we recommend the following course of action:


The following critical alert is displayed when backing up Hyper-V host and virtual machine(s) on it:

The running backup has not shown any progress for some time and may be frozen


Most likely cause for this alert is that VM backup is queued as it is waiting for host backup to be completed.

Error message text will be improved in the future product releases.


You receive the following error:

“Activity 'Applying retention rules' failed. The activity has failed due to a restart of the service.”


Possible causes are service crash or machine restart


To resolve the issue please do the folowing:


By default, Activities in Acronis Cyber Backup 12.5 are kept for 1 year.

To change for how long the Activities are retained, do the following: