Resolution
Use attached script to backup or restore Parallels Virtual Automation (PVA) Management Server. The pvabackup.vbs file should be extracted and copied to "C:\Program Files\Parallels\Parallels Virtual Automation\Management Server\bin\" folder:Backup command example:
cscript pvabackup.vbs BACKUP c:\mn_backupswhere c:\mn_backups is a folder where backup is going to be saved.
Restore command example:
cscript pvabackup.vbs RESTORE c:\mn_backups 20091027222544where 20091027222544 is a folder including backup which needs to be restored.
If PVA Management Server is installed inside a Container or Virtual Machine you can additionally backup this virtual instance to have PVA server backed up.
Note: The script can be used to migrate PVA Management Server to a new server using backup and restore functionality.