Chapter 1. High Availability Fundamentals
Virtually every aspect of our lives is touched in some way by the computer revolution. We have become highly dependent on computer systems—a good example of this dependence was illustrated by the frenzied preparation for the year 2000 computer bug, Y2K. Apart from the monetary cost, the potential loss of our computer systems caused widespread fears that the world would face various disasters—ranging in severity from failure of the ATM network to planes falling from the sky like ripe plums—or the ultimate bad news story, nuclear Armageddon.
Because our trading systems represent the backbone of our financial stability, users increasingly demand 100 percent availability. Any disruption to service is measured, ...
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