I have 2 clusters; both have HDDs and SSDs. Reporting only the HDDs which have their own pools: "rep-cluster": hdd-pool 3-replication, 86 OSDs (16 TiB each), 1024 PGs, 78 %RAW USED, 100 M objects "ec-cluster": hdd-pool erasure k=4 m=2, 58 OSDs (16 TiB each), 256 PGs, 60 %RAW USED, 450 M objects Both are Ceph 18.2.1, Bluestore, and have the autoscaler enabled. As you can see, I have many small objects. My PGs-copies-per-OSD seem far off from the recommendation of 100 PGs per OSD (`mon_target_pg_per_osd`): rep-cluster: 35 PGs/OSD (= 1024*3/86) ec-cluster: 26 PGs/OSD (= 256*6/58) So I'm at least 3x-4x off. Why? Should the autoscaler not have increased the PGs here? `ceph osd pool autoscale-status`: rep-cluster: POOL SIZE TARGET SIZE RATE RAW CAPACITY RATIO TARGET RATIO EFFECTIVE RATIO BIAS PG_NUM NEW PG_NUM AUTOSCALE BULK data 349.4T 3.0 1343T 0.7802 1.0 1024 on False ec-cluster: data_ec 347.3T 1.5 876.4T 0.5944 1.0 256 on False I believe that because of this I suffer some drawbacks: * On ec-cluster, a PG contains ~2 TiB and ~2 M objects, causing rebalances to happen in coarse, slow steps. Should I take some steps to force the autoscaler to increase PGs, and if yes, which approach would be best here? Thanks for your tips! Niklas