Hi, we're in the process of changing 480G drives for 1200G drives, which should cut the number of OSDs I have roughly to 1/3. My largest "volumes" pool for OpenStack volumes has 16384 PGs at the moment and I have 36K PGs in total. That equals to ~180 PGs/OSD and would become ~500 PG/s OSD. I know I can't actually decrease the number of PGs in a pool, and I'm wondering if it's worth working around to decrease the numbers? It is possible I'll be expanding the storage in the future, but probably not 3-fold. I think it's not worth bothering with and I'll just have to disable the "too many PGs per OSD" warning if I upgrade. I already put some new drives in and the OSDs seem to work fine (though I had to restart them after backfilling - they were spinning CPU for no apparent reason). Your thoughts? Thanks Jan _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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