Virtualization Essentials

Increasing Availability

Recent history has numerous examples of new technologies becoming vital resources in our everyday existence. Thomas Edison built the first power plant in 1882, but it took almost another 70 years to provide electricity to just about everyone in the United States. Refrigeration, appliances, heat, and light all fail when the power is off. Energy companies have employed sophisticated power grids to prevent such occurrences, but they still inconvenience us with regularity. Telephone service followed a similar path. Invented in the mid-1850s and brought to market twenty years later, there were almost 6 million telephones by 1910 in AT&T’s system. Fifty years later the number jumped to 80 million phones, and when the first cellular ...