Most servers today are either very busy, running at a high level of CPU utilization, or are idle a significant portion of the time, waiting for something to do. As you have learned, when a server becomes very busy, the IT staff may, as shown in FIGURE 8-4, introduce a load-balancing server and then add additional servers, as necessary, to handle the workload.
FIGURE 8-4 Using load balancing, the IT staff can supply the number of servers necessary to meet the server workload at a given time.
In contrast, when a server is idle, the server’s potential processing power is being wasted. For a cloud-based PaaS provider, such ...
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