All Barracuda Backup Servers, firmware version 4.2+.
Barracuda Backup requires access to the vStorage APIs for Data Protection in order to be able to backup VMware virtual machines.
Access to those APIs is included with the following license kits.
- Essentials Kit
- Essentials Plus Kit
- Standard Acceleration Kit
- Enterprise Acceleration Kit
- Enterprise Plus Acceleration Kit
More detailed information can be found at the following link: