Hello Eugen, Requested details are as below. PG ID: 15.28f0 Pool ID: 15 Pool: default.rgw.buckets.data Pool EC Ratio: 8: 3 Number of Hosts: 12 ## crush dump for rule ## #ceph osd crush rule dump data_ec_rule { "rule_id": 1, "rule_name": "data_ec_rule", "ruleset": 1, "type": 3, "min_size": 3, "max_size": 11, "steps": [ { "op": "set_chooseleaf_tries", "num": 5 }, { "op": "set_choose_tries", "num": 100 }, { "op": "take", "item": -50, "item_name": "root_data~hdd" }, { "op": "chooseleaf_indep", "num": 0, "type": "host" }, { "op": "emit" } ] } ## From Crushmap dump ## rule data_ec_rule { id 1 type erasure min_size 3 max_size 11 step set_chooseleaf_tries 5 step set_choose_tries 100 step take root_data class hdd step chooseleaf indep 0 type host step emit } ## EC Profile ## ceph osd erasure-code-profile get data crush-device-class=hdd crush-failure-domain=host crush-root=root_data jerasure-per-chunk-alignment=false k=8 m=3 plugin=jerasure technique=reed_sol_van w=8 OSD Tree: https://pastebin.com/raw/q6u7aSeu