I've been banging on my ceph octopus test cluster for a few days now. 8 nodes. each node has 2 SSDs and 8 HDDs. They were all autoprovisioned so that each HDD gets an LVM slice of an SSD as a db partition. service_type: osd service_id: osd_spec_default placement: host_pattern: '*' data_devices: rotational: 1 db_devices: rotational: 0 things were going pretty good, until... yesterday.. i noticed TWO of the OSDs were "down". I went to check the logs, with journalctl -u ceph-xxxx@osd.xxx all it showed were a bunch of generic debug info, and the fact that it stopped. and various automatic attempts to restart. but no indication of what was wrong, and why the restarts KEEP failing. sample output: systemd[1]: Stopped Ceph osd.33 for e51eb2fa-7f82-11eb-94d5-78e3b5148f00. systemd[1]: Starting Ceph osd.33 for e51eb2fa-7f82-11eb-94d5-78e3b5148f00... bash[9340]: ceph-e51eb2fa-7f82-11eb-94d5-78e3b5148f00-osd.33-activate bash[9340]: WARNING: The same type, major and minor should not be used for multiple devices. bash[9340]: WARNING: The same type, major and minor should not be used for multiple devices. podman[9369]: 2021-03-07 16:00:15.543010794 -0800 PST m=+0.318475882 container create podman[9369]: 2021-03-07 16:00:15.73461926 -0800 PST m=+0.510084288 container init ..... bash[1611473]: --> ceph-volume lvm activate successful for osd ID: 33 podman[1611501]: 2021-03-18 10:23:02.564242824 -0700 PDT m=+1.379793448 container died bash[1611473]: ceph-xx-xx-xx-xx-osd.33 bash[1611473]: WARNING: The same type, major and minor should not be used for multiple devices. (repeat, repeat...) podman[1611615]: 2021-03-18 10:23:03.530992487 -0700 PDT m=+0.333130660 container create .... systemd[1]: Started Ceph osd.33 for xx-xx-xx-xx systemd[1]: ceph-xx-xx-xx-xx@osd.33.service: main process exited, code=exited, status=1/FAILURE bash[1611797]: ceph-xx-xx-xx-xx-osd.33-deactivate and eventually it just gives up. smartctl -a doesnt show any errors on the HDD dmesg doesnt show anything. So... what do I do? -- Philip Brown| Sr. Linux System Administrator | Medata, Inc. 5 Peters Canyon Rd Suite 250 Irvine CA 92606 Office 714.918.1310| Fax 714.918.1325 pbrown@medata.com| www.medata.com