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by rz2k
3684 days ago
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Does it say triple mirroring or triple redundancy? Take a look at the article from Backblaze for an overview of the math. In their case it might be called quadruple redundancy. 20 shards hold 17 shards of data with triple parity. Events destroying hard drives containing information about your data could happen three times, and you still wouldn't lose anything. |
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