At this point, we need to squeeze in some basic disk storage terminology and concepts. For the Server+ exam, your knowledge of these terms and concepts is generally assumed, so this is something we need to cover. In this and the next few sections, we'll look at the technical organization of data storage and retrieval methods, technologies, and systems.
Data storage systems
Direct-attached storage (DAS)
The name DAS should be self-explanatory. DAS is any storage device, HDD, SSD, USB, tape, optical disc, flash drive, and so on connected directly to or attached to a computer. An HDD installed inside a computer's case is DAS; a USB-connected external HDD is DAS; and an a USB tape drive is DAS. In other words, if a...
