Chapter 6. Data Storage

In Chapter 2 we looked at how I/O technology evolved, with particular emphasis on two issues: the effect of technology on magnetic disk data access and problems in the software layers of network access. In this chapter, we focus on the issues of data storage, looking at both data storage architecture options and the issues surrounding data backup and restoration. We will also look at some storage subsystems.

Unlike the realm of processor architecture, the field of data storage is characterized by innovative architectural solutions. Note: The field of communications also displays substantial innovation.

As we noted earlier, one explanation for this richness of innovation is that a storage subsystem generally only needs to ...

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