Chapter 1

The Disk Drive: The Fundamental Building Block of Enterprise Storage

All enterprise storage is based on the basic building block: the hard disk drive or HDD.

We will start with key metrics of the hard disk drive: price, performance, power, and capacity. We’re going to identify the important stuff and remove the noise. Once we have a command of foundation and key metrics, the systems, processes, and economic delivery on service levels readily falls into place.

HDDs come in various price/performance/power/capacities and we can remove the complexity to arrive at the right tool for the job at hand. In the real world, enterprise storage is not about which system offers the cheapest gigabytes for the money. Enterprise storage is not about ...

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