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Chapter 7
Servers—Physical, Virtual,
and Software
Software that truly does not require hardware will be revolutionary.
In this chapter you will learn:
About the demand for more servers that consume more power and
generate more heat
The benefits and challenges associated with increased server densi-
ties
Differences between physical and virtual servers
The many facets of server virtualization
Differences between clustering and grid computing
The importance of this chapter is understanding the relationship
between the need for more processing capability and the consequent energy
demands versus the need to improve energy efficiency to ...