Hi, I activated balancer in order to balance data distribution: root@ld3955:~# ceph balancer status {     "active": true,     "plans": [],     "mode": "upmap" } However, the data stored on 1.6TB HDD in specific pool "hdb_backup" is not balanced; the range starts with osd.265 size: 1.6 usage: 52.83 reweight: 1.00000 and ends with osd.145 size: 1.6 usage: 80.19 reweight: 1.00000 The affected drives are located on 4 nodes. The result is that not all available disk space is available for usage. I have attached pastebin <https://pastebin.com/dNyEwNR0> with - ceph osd df sorted by usage - ceph osd df tree Please advise how to start balancer to correct data distribution. THX