Dear all, I now attempted this and my host is back in the cluster but the `ceph cephadm osd activate` does not work. # ceph cephadm osd activate HOST Created no osd(s) on host HOST; already created? Using --verbose is not too helpful either: bestcmds_sorted: [{'flags': 8, 'help': 'Start OSD containers for existing OSDs', 'module': 'mgr', 'perm': 'rw', 'sig': [argdesc(<class 'ceph_argparse.CephPrefix'>, req=True, name=prefix, n=1, numseen=0, prefix=cephadm), argdesc(<class 'ceph_argparse.CephPrefix'>, req=True, name=prefix, n=1, numseen=0, prefix=osd), argdesc(<class 'ceph_argparse.CephPrefix'>, req=True, name=prefix, n=1, numseen=0, prefix=activate), argdesc(<class 'ceph_argparse.CephString'>, req=True, name=host, n=N, numseen=0)]}] Submitting command: {'prefix': 'cephadm osd activate', 'host': ['HOST'], 'target': ('mon-mgr', '')} submit {"prefix": "cephadm osd activate", "host": ["HOST"], "target": ["mon-mgr", ""]} to mon-mgr How can I find out what goes wrong here? Thanks! Manuel On Wed, Feb 2, 2022 at 12:43 PM Robert Sander <r.sander@xxxxxxxxxxxxxxxxxxx> wrote: > On 02.02.22 12:15, Manuel Holtgrewe wrote: > > > > Would this also work when renaming hosts at the same time? > > > > - remove host from ceph orch > > - reinstall host with different name/IP > > - add back host into ceph orch > > - use ceph osd activate > > > > as above? > > That could also work as long as the OSDs are still in the CRUSH map. > Keep in mind that the last command is > > ceph cephadm osd activate $HOSTNAME > > Regards > -- > Robert Sander > Heinlein Consulting GmbH > Schwedter Str. 8/9b, 10119 Berlin > > https://www.heinlein-support.de > > Tel: 030 / 405051-43 > Fax: 030 / 405051-19 > > Amtsgericht Berlin-Charlottenburg - HRB 220009 B > Geschäftsführer: Peer Heinlein - Sitz: Berlin > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx