"...If VMware 2.x was good enough for production work, then
where is the advantage of using VMware GSX or ESX?"
"Well, there are several advantages. Even server applications
that require particular hardware and software setups can run on GSX
Server because each virtual machine has its own configuration of
virtual devices and its own operating system and applications."
"All those many servers that you hastily added, but dare not
touch now, can dependably run in virtual machines hosted on a
standard Intel-architecture server that supports your
system-administration policies. Once hosted on a GSX Server or ESX
Server, a server application running in a virtual machine operates
identically to a real machine with full networking
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