17 Dec
2024
17 Dec
'24
3:16 p.m.
Just repeating what I read. I suspect that the effect is minimal. Back when I did ZFS a lot there was conventional wisdom of a given party group not having more than 9 drives, to keep rebuild and writes semi-manageable.
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.
-- May the most significant bit of your life be positive.