If you’re trying to run large multi-machine configurations in a virtual lab, here is something that might interest you. I’ve put down two figures below. The first shows a 125 role (a “role” is a virtual machine) configuration running in VMLogix LabManager. The second figure shows the virtual host view on which these VMs have been deployed.
This type of scalability across many managed virtual lab hosts (and size of configuration) is important as you consider using your virtual lab for training and demos (where many students are likely to load their labs or pre-sales engineers are likely to load the virtual hosts). It is also important in the case of software development/test and software support, but probably more important in a training/demo virtual lab environment.