I see... But I had another problem. The script from (0) indicate that should be exist a /var/lib/ceph/osd folder, like: /var/lib/ceph/osd/ceph-pve01 /var/lib/ceph/osd/ceph-pve02 and so on.
But this folder appears only if I run ceph-volume lvm activate --all. So my question is: when I should run this command: after or before use the script? I think I need to run ceph-volume lvm activate --all, right? Just to clarify. Thanks Em qua., 20 de ago. de 2025 às 11:08, Eugen Block <ebl...@nde.ag> escreveu: > Yes, you need a monitor. The mgr is not required and can be deployed > later. After you created the monitor, replace the mon store contents > by the collected clustermaps from the mentioned procedure. Keep the > ownerships of the directories/files in mind. If the monitor starts > successfully (with the original FSID), you can try to start one of the > OSDs. If that works, start the rest of them, wait for the peering > storm to settle, create two more monitors and two mgr daemons. > > Note that if you lose the mon store and you had a CephFS, you'll need > to recreate that from the existing pools. > > Zitat von Gilberto Ferreira <gilberto.nune...@gmail.com>: > > > Hi > > > > Do I need to create any mon and/or mgr in the new ceph cluster? > > > > > > > > Em seg., 18 de ago. de 2025 às 13:03, Eugen Block <ebl...@nde.ag> > escreveu: > > > >> Hi, > >> > >> this sounds like you created a new cluster (new fsid), the OSDs still > >> have the previous fsid configured. I'd rather recommend to follow this > >> procedure [0] to restore the mon store utilizing OSDs rather than > >> trying to manipulate otherwise intact OSDs to fit into the "new" > >> cluster. That way you'll have "your" cluster back. I don't know if > >> there are any specifics to using proxmox, though. But the mentioned > >> procedure seems to work just fine, I've read multiple reports on this > >> list. Luckily, I haven't had to use it myself. > >> > >> Regards, > >> Eugen > >> > >> [0] > >> > >> > https://docs.ceph.com/en/latest/rados/troubleshooting/troubleshooting-mon/#recovery-using-osds > >> > >> Zitat von Gilberto Ferreira <gilberto.nune...@gmail.com>: > >> > >> > Hi > >> > > >> > I have 3 nodes Proxmox Cluster with CEPH, and after a crash, I have to > >> > reinstall Proxmox from scratch, along with Ceph. > >> > OSD are intact. > >> > I already did ceph-volume lvm activate --all and the OSD appears with > >> > ceph-volum lvm list and I got a folder with the name of the OSD under > >> > /var/lib/ceph/osd. > >> > However is not appear in ceph osd tree or ceph -s or even in the web > gui. > >> > Is there any way to re-add this OSD to Proxmox CEPH? > >> > > >> > Thanks a lot for any help. > >> > > >> > > >> > Best Regards > >> > --- > >> > Gilbert > >> > _______________________________________________ > >> > ceph-users mailing list -- ceph-users@ceph.io > >> > To unsubscribe send an email to ceph-users-le...@ceph.io > >> > >> > >> _______________________________________________ > >> ceph-users mailing list -- ceph-users@ceph.io > >> To unsubscribe send an email to ceph-users-le...@ceph.io > >> > > _______________________________________________ > > ceph-users mailing list -- ceph-users@ceph.io > > To unsubscribe send an email to ceph-users-le...@ceph.io > > > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io > _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
