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Jared
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Best RAID 6 Explanation by EMC

Thu Feb 25, 2016 6:51 pm

I just stumbled upon this whitepaper from EMC while doing some research for a possible case coming in. I think it's the best explanation I've ever seen of how RAID 6 actually calculates double parity and how it uses it to restore lost blocks in a two drive failure.

Anyone wanting to really understand the inner workings of RAID 6 EVENODD (not Reed Solomon) should read this. Wish I had it a few years ago when I was still struggling to really understand all the math.

http://www.emc.com/collateral/hardware/ ... raid-6.pdf

HaQue
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Best RAID 6 Explanation by EMC

Sat Feb 27, 2016 5:27 am

Nice, thanks. Always good to have such clear docs

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