Sub Domain in 2 Servers

I have 2 servers using InterWorx, how could I setup

abc.com - > server A
test.abc.com -> server B

I’m using cloudflare, so I can redirct my sub domain to any IP server.

But in server B, should I create a profile just like in server A and add subdomain ?

Wouldn’t it be easier to just setup 2 main websites? No Sub Domain setup.

One with the domain abc.com and the other with test.abc.com?

Justin’s solution is about the only real way to do this. There’s nothing that says you can’t define a domain with a . in it.