"In an environment where a company has a myriad of servers it's
important to remember every one of those servers is consuming
electricity and cooling, has a hardware support contract associated
with it, and is occupying rental space.
"If you could reduce the headcount of these servers instead of
people - but without losing any of the functions these servers do -
you would save money and save people, but without your end users
even knowing anything was different because all would work just as
normal. (Of course, some might say it's pretty usual for end users
not to notice what the IT team do!)
"The first thought that might come to mind is to double up the
workload of some of these servers. Why dedicate so many machines to
just one or two apps when they have the grunt to run more?"