December 2004
Beginner
480 pages
11h 54m
English
book
Storage Networking Fundamentals: An Introduction to Storage Devices, Subsystems, Applications, Management, and Filing Systems
by Marc Farley
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RAID Fundamentals
RAID is a fairly simple concept with some surprisingly tricky implementation details. This chapter explores the basic ideas first and then moves into the more interesting and complex RAID techniques involving parity.
RAID Arrays and Members
The primary structural element of RAID is the array. (See Chapter 5, “Storage Subsystems,” for a discussion of arrays.) RAID allows many individual storing entities to be combined in a single array that functions as a single virtual storage device.
The granular storing entities in an array are called array members. RAID arrays can have two or more. People often think that RAID arrays are constructed from member disk drives, but that is a bit misleading. It is more helpful to think about arrays ...
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