[Cryptography] [FORGED] Cubbit

Jerry Leichter leichter at lrw.com
Sun Jun 7 06:41:49 EDT 2020

>> The description Cubbit provides says that they distribute 36 copies in
>> a Reed-Solomon code that allows recovery from any 24 copies.  But one
>> way or another ... 36 copies requires that, somewhere, there be 35
>> times the space of the original copy to provide the redundancy.
> We have a RAID6 at work that uses 12 1TB drives. It provides a full 10TB
> of usable storage, and any two of those 12 drives can fail without
> causing us any data loss whatsoever.
> How does this fit with your analysis?
It doesn't.  Dumb analysis on my part - not actually thinking it through.  I ought to know how error-correcting codes work....
                                                        -- Jerry

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