In the networking industry, the use of hardware network functions (firewalls, load balancers, and so on) is very common. We (network engineers) have always been of hesitant about relying on a virtual firewall or load balancer. However, after the establishment of production server virtualization in the last decade (from VMware ESX 3 until now), virtualization-as-technology has passed all the tests and has become a reliable resource, especially for application servers.
There are many critical application servers that run on a virtualized environment. Because of maturity of virtualization technology and its enterprise features it is considered a highly reliable and resistance technology.
In recent years, virtualization ...
