Can anyone share if it is better to put a health probe under a real server or under the server farm. Is there is any advantage to either way? We are looking at doing a get url.
All the probes in a serverfarm have to be successful for a Real to be considered operational. This is probably the criterion that you would have to consider while making the decision. I don't think there's any software limit to probes within a serverfarm.
You could use the information in the following document to configure probes