DEV/QA/TEST Implementation

Our primary HA pair are Viprions and we use ESX for dev and qa. The LAB version of LTM for ESX is inexpensive but has significant bandwidth limitations and can't be used for production traffic. It also doesn't let you test and pre-deploy features that tend to break when performing upgrades on the Viprion. Simple network HA between to VMs works just with hardware. Overall, using the virtual versions has worked quite well for us.