Hi, Output of command above root@ceph07:~# ceph osd dump | grep min_compat_client require_min_compat_client luminous min_compat_client luminous root@ceph07:~# I try reduce to jewel but not success _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx