VMWare ESX Server is a virtual server package that allows users to emulate the entire operation of a computer multiple times for different instances of a server. By doing so, VMWare Virtualization allows network administrators to customize their hosting services to the consumer cheaper than they otherwise could. Essentially, a customer can run multiple copies of an operating system simultaneously on a single machine by partitioning the machine between them. Doing so allows network administrators to handle more hosting on fewer machines, cutting down on hosting costs.

VMWare Virtualization works by using what is called a hypervisor, a piece of software that acts as a messenger between the hardware and each running operating system. The hypervisor carries instructions from each operating system to the processor, memory and other computer hardware, making the system think it is actually talking to the hardware directly. However, the server is still completely isolated from both the hardware and the other systems running on the machine, an ability that allows hosting providers to open server environments to their customers without the expense of purchasing a machine for each one.

VMWare ESX Server, a virtual server package, is an excellent choice for several other reasons. Besides isolating different instances of a server from each other, VMWare Virtualization means that servers are far more portable, simple to back up, and easy to restart. A virtual server can be quickly moved from one machine to another, possibly without any down time. And, because a VMWare ESX Server only knows about the hardware it is told about, it can run anything as if it was on a completely different machine. Since the server is emulating all of the processes of the hardware for the installed operating system, it's a simple matter to emulate something else.

VMWare Virtualization also enhances the servers it's used on in other ways. Since the server itself never has access to the actual hardware, virtualization allows for virtual servers that use resources that may not even be in the same machine. With virtualization, servers change from being a row of independent boxes to a variety of independent components that may not even be in the same location, but still interact as if they were. Software solutions like VMWare ESX Server free the IT department to create more adaptive solutions, saving resources and becoming more efficient.

Whatever your server needs, VMWare ESX Server is an excellent choice. VMWare Virtualization offers the possibility of greater efficiency and adaptability, at a lower cost. It also allows network administrators to create more customized solutions; whether the customer wants to run on Windows or Linux, they can be supported. Hardware costs and upkeep become less of a problem as well, since resources can be linked together to support each other. In every circumstance, VMWare ESX Server offers greater freedom and dependability.