Barracuda Networks recommends the following sizing for initial deployment of your virtual appliance, or upgrading existing installations.
Cores, RAM, and Hard Disk Space for the Barracuda Web Application Firewall Vx
Model | Minimum Cores | Maximum Cores | RAM - Recommended Minimum | Hard Disk - Recommended Minimum |
|---|---|---|---|---|
360 Vx | 2 | 2 | 4 GB | 50 GB |
460 Vx | 3 | 4 | 4 GB | 50 GB |
660 Vx | 6 | 6 | 8 GB | 50 GB |
760 Vx | 8 | 8 | 8 GB | 50 GB |
860 Vx | 10 | 10 | 10 GB | 50 GB |
960 Vx | 12 | 12 | 12 GB | 50 GB |
Allocating Cores
In your hypervisor, specify the number of cores to be used by the Barracuda Web Application Firewall Vx. Each Barracuda Web Application Firewall Vx model can use only the number of cores specified in the table above. For example, if you assign 4 cores to the Barracuda Web Application Firewall 360 Vx (which supports only 2 cores), the hypervisor disables the 2 extra cores that cannot be used.
To add cores to your appliance:
Shut down the Barracuda Web Application Firewall Vx in your hypervisor.
In the virtual machine CPU settings, add cores.
Allocating Hard Disk Space
Barracuda Networks requires a minimum of 50 GB of hard disk space to run your Barracuda Web Application Firewall Vx. From your hypervisor, you can specify the size of the hard disk or add a hard disk.
To specify the allocated hard disk space or add a hard disk to your appliance:
Shut down the Barracuda Web Application Firewall Vx in your hypervisor.
Take a snapshot of the virtual machine.
In the virtual machine settings, specify the new size for the hard disk or add a new hard disk.
Restart the virtual machine. As the appliance is booting up, view the console for Barracuda Web Application Firewall Vx. When the blue Barracuda Networks console screen appears and asks if you want to use the additional hard disk space, enter Yes.
Next Step
For instructions on how to set up the Barracuda Web Application Firewall Vx, see the Barracuda Web Application Firewall Vx Quick Start Guide.