Hi, I'm facing a critical issue with my Ceph cluster. It has become unable to read/write data properly and cannot recover normally. What steps should I take to resolve this? [root@ceph-node1 ~]# ceph -s cluster: id: 76956086-25f5-445d-a49e-b7824393c17b health: HEALTH_WARN 1 pools have many more objects per pg than average 102131233/124848552 objects misplaced (81.804%) Reduced data availability: 40 pgs inactive Degraded data redundancy: 6402821/124848552 objects degraded (5.128%), 11 pgs degraded, 31 pgs undersized services: mon: 3 daemons, quorum ceph-node1,ceph-node2,ceph-node3 mgr: ceph-node2(active), standbys: ceph-node3, ceph-node1 osd: 6 osds: 6 up, 6 in; 169 remapped pgs data: pools: 7 pools, 216 pgs objects: 41.62 M objects, 2.6 TiB usage: 18 TiB used, 12 TiB / 30 TiB avail pgs: 12.500% pgs unknown 6.019% pgs not active 6402821/124848552 objects degraded (5.128%) 102131233/124848552 objects misplaced (81.804%) 143 active+clean+remapped 27 unknown 15 active+undersized+remapped 13 active+clean 9 undersized+degraded+peered 4 undersized+peered 2 active+undersized+degraded 1 active+undersized 1 active+remapped+backfilling 1 active+clean+remapped+scrubbing+deep io: recovery: 1.3 MiB/s, 20 objects/s， [root@ceph-node1 ~]# ceph osd df tree ID CLASS WEIGHT REWEIGHT SIZE USE DATA OMAP META AVAIL %USE VAR PGS TYPE NAME -1 30.00000 - 30 TiB 18 TiB 17 TiB 125 GiB 302 GiB 12 TiB 58.88 1.00 - root default -3 10.00000 - 10 TiB 5.9 TiB 5.8 TiB 38 GiB 101 GiB 4.1 TiB 59.11 1.00 - host ceph-node1 0 hdd 5.00000 0.21257 5.0 TiB 2.3 TiB 2.2 TiB 25 GiB 41 GiB 2.7 TiB 46.21 0.78 61 osd.0 3 hdd 5.00000 0.13638 5.0 TiB 3.6 TiB 3.5 TiB 13 GiB 60 GiB 1.4 TiB 72.02 1.22 84 osd.3 -5 10.00000 - 10 TiB 6.2 TiB 6.1 TiB 42 GiB 105 GiB 3.8 TiB 62.40 1.06 - host ceph-node2 1 hdd 5.00000 0.13644 5.0 TiB 3.6 TiB 3.5 TiB 11 GiB 61 GiB 1.4 TiB 71.99 1.22 95 osd.1 4 hdd 5.00000 0.16666 5.0 TiB 2.6 TiB 2.6 TiB 31 GiB 44 GiB 2.4 TiB 52.81 0.90 104 osd.4 -7 10.00000 - 10 TiB 5.5 TiB 5.4 TiB 45 GiB 96 GiB 4.5 TiB 55.11 0.94 - host ceph-node3 2 hdd 5.00000 0.16666 5.0 TiB 3.5 TiB 3.4 TiB 22 GiB 62 GiB 1.5 TiB 70.19 1.19 79 osd.2 5 hdd 5.00000 0.21664 5.0 TiB 2.0 TiB 1.9 TiB 23 GiB 34 GiB 3.0 TiB 40.04 0.68 100 osd.5 TOTAL 30 TiB 18 TiB 17 TiB 125 GiB 302 GiB 12 TiB 58.88 MIN/MAX VAR: 0.68/1.22 STDDEV: 13.38 Thanks~