Types, Categories, and Tiers Of Servers 193
operating systems and applications as well as for Linux; however, Windows
and other x86-based guests and associated applications are not supported.
Conversely, ports or emulations of IBM mainframe operating systems exists
on x86-based systems for development, research, marketing, training, and
other purposes.
For underutilized servers, the value of consolidation is sharing a server’s
CPU, memory, and I/O capabilities across many different VMs, each func-
tioning as if it were a unique server, to reduce PCFE and associated hard-
ware costs of dedicated servers. Utilization of a server hosting many VMs via
a virtualization infrastructure is increased, making other servers surplus or
available for redeployment ...