The data center concept has greatly evolved over the last few years, passing through many phases because of evolving technology, as illustrated in Figure 4.11 below.
Figure 4.11 – Evolution of Data Centers
At the time of their appearance, data centers were centralized and they used mainframes to manage their data. Mainframes were managed using terminals, which are still used in modern data centers because of their resiliency, although they can be considered legacy components of data centers.
Note: Managing the . . .
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