Do images replicate across servers like the bundles do?

I ask because we have 3 ZENworks servers. One of them has a fiber channel card, and two don't. None of them have enough internal space to hold our images.

On the server with the fiber channel card, can we mount some SAN storage and sym-link the images folder to that san storage and be ok? Or will the images try to replicate across all 3 servers, running them out of space?