Acronis 8.0 - Unable to create volume snapshot

I get mentioned error when performing a scheduled or manually started backup of a 838GB disk to a backup server with 500GB free space.
Amount of data is only 180GB.

Does the volume snapshot need the complete amount of disk space available before making an incremental backup?

 

Hello m_idget,

Thank you for choosing Acronis Disk Backup Software.

Please install the below update with disabled logging and see whether the problem persists.

http://download.acronis.com/support/SnapAPI.222_s_e.exe

If the problem does persist, please enable logging by running the update once more, reproduce the program failure and submit a request for technical support. Provide the c:\snapapi.log file created and the link to this thread. We will investigate the problem and try to provide you with the solution.

Thank you.
--
Anton Sherkhonov