Re: Erasure coding best practice

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> > To be honest with 3:8 we could protect the cluster more from osd flapping.
> > Let's say you have less chance to have 8 down pgs on 8 separate nodes then with 8:3 only 3pgs on 3 nodes.
> > Of course this comes with the cost on storage used.
> > Is there any disadvantage performance wise on this?
>
> A few years back someone asserted that EC values with small prime factors are advantageous, so 23,11 would be doubleplus ungood.

I thought it was that K should preferably be a power of two, M as many
as your security demands require.
Also pools should have power-of-two PGs, and bucket shards would be primes.

I could be wrong though.

-- 
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