Coexistence with third-party software
Acronis Backup cannot work with tapes on a machine where third-party software with proprietary tape management tools is installed. For Acronis Backup to use tapes on such machine, you need to uninstall or deactivate the third-party tape management software.
Interaction with RSM
Unlike Acronis Backup & Recovery 10, Acronis Backup does not use Windows Removable Storage Manager. During an upgrade from Acronis Backup & Recovery 10, Acronis Backup writes the necessary information from RSM to its own database in the new format.
When detecting a tape device, Acronis Backup disables the device from RSM (unless it is being used by other software). As long as you want Acronis Backup to work with the tape device, make sure that neither a user nor third-party software enables the device in RSM. If the tape device was enabled in RSM, repeat the tape device detection.