Hi, I have a Nautilus installation version 14.2.1 with a very unbalanced cephfs pool, I have 430 osd in the cluster but this pool only have 8 PG and PGP and 118 TB used : # ceph -s cluster: id: a2269da7-e399-484a-b6ae-4ee1a31a4154 health: HEALTH_WARN 1 nearfull osd(s) 2 pool(s) nearfull services: mon: 3 daemons, quorum mon21,mon22,mon23 (age 7M) mgr: mon23(active, since 8M), standbys: mon22, mon21 mds: cephfs:2 {0=mon21=up:active,1=mon22=up:active} 1 up:standby osd: 430 osds: 430 up, 430 in data: pools: 2 pools, 16 pgs objects: 10.07M objects, 38 TiB usage: 118 TiB used, 4.5 PiB / 4.6 PiB avail pgs: 15 active+clean 1 active+clean+scrubbing+deep # ceph osd pool get cephfs_data pg_num pg_num: 8 Due to this bad configuration I have this warning message: # ceph status cluster: id: a2269da7-e399-484a-b6ae-4ee1a31a4154 health: HEALTH_WARN 1 nearfull osd(s) 2 pool(s) nearfull I've discover that some osd are full: # ceph osd status | 113 | osd23 | 9824G | 1351G | 0 | 0 | 0 | 0 | exists,nearfull,up | I've tried to reweight this osd: ceph osd reweight osd.113 0.9 But the process of reweight doesn't start. Otherwise I've tried to increase the PG and PGP numbers but it' doesn't work. # ceph osd pool set cephfs_data pg_num 128 set pool 1 pg_num to 128 # ceph osd pool get cephfs_data pg_num pg_num: 8 What could be the reason for this problem?