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Nested-RAID: RAID-5 and RAID-6 Based Configurations

Jan 13, 2011, 20:34 (0 Talkback[s])
(Other stories by Jeffrey B. Layton)

[ Thanks to for this link. ]

"In our last article, we introduced the concept of a Nested RAID configuration. Nested RAID combines standard RAID levels such as RAID-0, RAID-1, RAID-5, or RAID-6 to create a new RAID combination targeting better performance or better data redundancy or both. Typically, the goal of Nested RAID is to provide a combination with both really good performance and really good data redundancy (if possible) but you will also see some RAID configurations in this article that have amazing data redundancy features.

"In general, it's fairly easy to recognize a Nested RAID configuration because it will have two or more numbers designating the combination of standard RAID levels. For example RAID-10 uses both RAID-1 and RAID-0 to create the Nested RAID configuration. RAID-51 uses RAID-5 and RAID-1 to create that Nested RAID configuration, and so on."

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