Hi, Having timeout problems with my cluster, I try to finsh, recreate OSDs that failed. My config is hybrid with 17 HDD and 1 SSD by server. My OSD spec is the standard : service_type: osd service_id: throughput_optimized service_name: osd.throughput_optimized placement: host_pattern: '*' spec: data_devices: rotational: 1 db_devices: rotational: 0 objectstore: bluestore encrypted: true filter_logic: AND When I remove an OSD with : ceph orch osd rm ID --zap It is finaly re-created, but without DB device. And I can see the ceph-volume commands : Zapping : cephadm ['--image', 'quay.io/ceph/ceph@sha256:7c69e59beaeea61ca714e71cb84ff6d5e533db7f1fd84143dd9ba6649a5fd2ec', '--timeout', '2395', 'ceph-volume', '--fsid', '8ec7575a-7de5-11f0-a78a-246e96bd90a4', '--', 'lvm', 'zap', '--osd-id', '82', '--destroy'] Recreate : cephadm ['--env', 'CEPH_VOLUME_OSDSPEC_AFFINITY=throughput_optimized', '--image', 'quay.io/ceph/ceph@sha256:7c69e59beaeea61ca714e71cb84ff6d5e533db7f1fd84143dd9ba6649a5fd2ec', '--timeout', '2395', 'ceph-volume', '--fsid', '8ec7575a-7de5-11f0-a78a-246e96bd90a4', '--config-json', '-', '--', 'lvm', 'batch', '--no-auto', '/dev/sde', '--dmcrypt', '--osd-ids', '82', '--yes', '--no-systemd'] I think it should have the argument --db-devices ? I can see that option when the OSD spec was applied, it launch for all drives on the host : cephadm ['--env', 'CEPH_VOLUME_OSDSPEC_AFFINITY=throughput_optimized', '--image', 'quay.io/ceph/ceph@sha256:7c69e59beaeea61ca714e71cb84ff6d5e533db7f1fd84143dd9ba6649a5fd2ec', '--timeout', '2395', 'ceph-volume', '--fsid', '8ec7575a-7de5-11f0-a78a-246e96bd90a4', '--config-json', '-', '--', 'lvm', 'batch', '--no-auto', '/dev/sda', '/dev/sdb', '/dev/sdc', '/dev/sdd', '/dev/sde', '/dev/sdf', '/dev/sdg', '/dev/sdh', '/dev/sdi', '/dev/sdj', '/dev/sdk', '/dev/sdl', '/dev/sdm', '/dev/sdn', '/dev/sdo', '/dev/sdp', '/dev/sdq', '--db-devices', '/dev/sdr', '--dmcrypt', '--yes', '--no-systemd'] There is the --db-devices argument. Is it a bug or I do it wrong ? I have several OSD that are now without DB device, I want to recreate them with the DB device. And also, I want that every time a new drive is created, it will be with a DB device, or fails if no room, but not create without DB device if my OSD SPEC tells it.