we have 5 web applications, they need their own server but don't need much horsepower to run (512MB RAM /4GB disk). I am thinking to squeeze them onto 2x 2GB RAM servers using VMWare, so my questions are:
1. which kind of VMWare should we go for? workstation/GSX/ESX
2. is it possible to backup the virtual disk (as large file) w/ changes for disaster recovery, if so, can we automate it daily when the guest OS is running?