On Sun, 28 Apr 2019 at 16:14, Paul Emmerich <paul.emmerich@xxxxxxxx> wrote: > Use k+m for PG calculation, that value also shows up as "erasure size" > in ceph osd pool ls detail So does it mean that for PG calculation those 2 pools are equivalent: 1) EC(4, 2) 2) replicated, size 6 ? Sounds weird to be honest. Replicated with size 6 means each logical data is stored 6 times, what needed single PG now requires 6 PGs. And with EC(4, 2) there's still only 1.5 overhead in terms of raw occupied space -- how come PG calculation distribution needs adjusting to 6 instead of 1.5 then? Also, why does CEPH documentation say "It is equivalent to a replicated pool of size __two__" when describing EC(2, 1) example? -- End of message. Next message? _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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