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RAID

Explainer: What is RAID?

Reading about servers and storage you might have wondered: What is RAID? RAID is a method of melting multiple harddrives together to form a (often) larger logical drive. The acronym expands to either Redundant Array of Inexpensive Disks or Redundant Array of Independent Disks.

RAID was defined in a research paper: “A case for Redundant Arrays of Inexpensive Disks (RAID)” (Patterson et al, 1988). Andrew S Tanenbaum uses the latter acronym in his book (“Structured Computer Organization 5th Edition”, Tanenbaum, 2006, p 89). I had access to the 5th edition, from which I reference but you can get the 6th edition from Amazon.com and amazon.de (affiliate links).

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