How to configure Single VS for multiple networks?

[cptest]

I have got a physical fw with 7 interfaces protecting 5 DMZs and one internal network.

I would like to configure similar setup with Virtual System on VSX.

Can I achieve this with single VS. And how to do that.

[rss8309]

You would need to create a single VS and dedicate 7 physical interfaces for that particular VS. It will be the same as a single firewall but VSX gives you provision to create additional VSs (as many as your license permits) and use it for additional firewalls. You can , alternatively , think of configuring VLANs in the interfaces which would save you the number of physical interfaces, but would require some changes in the overall design.