[ceph-users] OSDs with primary affinity 0 still used for primary PG

Hi, I'm looking into storing the primary copy on SSDs, and replicas on spinners. One way to achieve this should be the primary affinity setting, as outlined in this post: https://www.sebastien-han.fr/blog/2015/08/06/ceph-get-the-best-of-your-ssd-with-primary-affinity So I've deployed a small te

Re: [ceph-users] OSDs with primary affinity 0 still used for primary PG

nobody would be responsible > for the PG.  To prevent this from happening, you would need to configure > your crush map in a way where all PGs are guaranteed to land on at least > 1 OSD that doesn't have a primary affinity of 0. > > On Mon, Feb 12, 2018 at 2:45 PM Teun Docter