"Wouldn't the session manager take care of directing a request to a certain
AOS ? (I.e. load balancing).When not using the session manager, how is
determined which AOS in the cluster to use ?"
Well: I can only assume that it makes the same as Axapta 3.0 (but better): the client tries to connect to all AOS servers in it's configuration. Each AOS server tells the number of users connected, the client connects to the one with the lowest user count.
Hmm, if anybody from Microsoft is reading this and knows how it works, please give us some feedback.