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Nested-RAID: The Triple Lindy

Mar 02, 2011, 17:04 (0 Talkback[s])
(Other stories by Jeffrey B. Layton)

"Thus far we have talked about single-level RAID configurations and Nested RAID configurations. But we've artificially restricted ourselves to only two levels in Nested RAID. Couldn't we have three RAID levels or more? The answer is yes, and in this article we'll talk about three levels (the proverbial "Triple Lindy") and have some fun with a couple of examples.

"RAID "Triple Lindy" Introduction

"In the previous three articles, the concept of RAID was introduced, Nested RAID configurations starting with RAID-0 and RAID-1 based Nested RAID configurations were explored, and RAID-5 and RAID-6 based Nested RAID configurations were discussed. Recall that Nested RAID allow standard RAID configurations such as RAID-0, RAID-1, RAID-5, and RAID-6, to be combined in multiple levels. For example, RAID-0 and RAID-1 could be combined to create RAID-10. But Nested RAID does not restrict the number of RAID levels. So what would happen if three levels of RAID were combined for a RAID configuration? Would it have even more performance along with great data redundancy? Or could I let my "Data OCD" take control and produce a RAID configuration that can withstand the loss of a huge number of drives without losing access to data?"

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