Than you for your suggest! I have already deleated the lvm both of the Block and DB devices. I monitored the creating process of OSD.23. with the command-line "podman ps -a". The osd.23 apeared for a shorted time, then was deleated. The feedback of the command-line "compute11:data_devices=/dev/sda,db_devices=/dev/sdc,osds_per_device=1" told me "Created osd(s) 23 on host 'compute11'" The osd was shown in dashboard, but was always down, and cannot be started. Thans again. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx