Thanks for you reply… but those command not working as its an always module..but strange still showing error, # ceph mgr module enable orchestrator module 'orchestrator' is already enabled (always-on) # ceph orch set backend — returns successfully… # # ceph orch ls Error ENOENT: No orchestrator configured (try `ceph orch set backend`) Its revolving between same error.. Root Cause: I removed a hosts and its odd’s and after some time above error started automatically. Earlier in the had 5 nodes but now 4.. Cluster is showing unclean pg but not doing anything.. But big error is Error ENOENT: Regards Dev > On Jan 24, 2025, at 4:59 PM, Fnu Virender Kumar <virenderk@xxxxxxxxxxxx> wrote: > > Did you try > > Ceph mgr module enable orchestrator > Ceph orch set backend > Ceph orch ls > > Check the mgr service daemon as well > Ceph -s > > > Regards > Virender > From: Devender Singh <devender@xxxxxxxxxx> > Sent: Friday, January 24, 2025 6:34:43 PM > To: ceph-users <ceph-users@xxxxxxx> > Subject: Error ENOENT: Module not found > > > Hello all > > Any quick fix for … > > root@sea-devnode1:~# ceph orch ls > Error ENOENT: Module not found > > > Regards > Dev > _______________________________________________ > 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