Hi, Unfortunately, all 3 monitors were lost. I followed this -> https://docs.ceph.com/en/quincy/rados/troubleshooting/troubleshooting-mon/#mon-store-recovery-using-osds and it is in the current state now. id: 234c6a96-8101-49d1-b354-1110e759d572 health: HEALTH_WARN mon is allowing insecure global_id reclaim no active mgr services: mon: 1 daemons, quorum mon1 (age 8m) mgr: no daemons active osd: 40 osds: 40 up (since 5M), 40 in (since 5M) data: pools: 0 pools, 0 pgs objects: 0 objects, 0 B usage: 0 B used, 0 B / 0 B avail pgs: all OSD daemons are turned off. It says all 40 osds are up, but the osd services are down. If I run ceph osd dump, it shows all the volumes and pg numbers .. so it looks like it knows of all those. My question is, is it now in a state where it's safe to start an OSD daemon ? Because ceph status shows no pools, no pgs, I have not turned it on to ensure no data loss occurs. At what point would I start the osd daemon? Note: If anyone has done something like this before, and can offer (paid) assistance/consultation, that is also welcome . Thanks, _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx