Hello, I have upgraded nautilus cluster to octopus few days ago. the cluster was running ok and even after to octopus everything was running ok the issue came when i rebooted the servers for updating the kernel. Two servers out of 6 osd's servers osd cant start. No error reported in ceph-volume.log and ceph-volume-systemd.log Starting osd with /usr/bin/ceph-osd -f --cluster ceph --id 30 --setuser ceph --setgroup ceph works just fine. the issue is starting osd in systemd ceph-volume-systemd.log 16:36:28,193][systemd][WARNING] failed activating OSD, retries left: 30 [2020-03-31 16:36:28,196][systemd][WARNING] command returned non-zero exit status: 1 [2020-03-31 16:36:28,196][systemd][WARNING] failed activating OSD, retries left: 30 [2020-03-31 16:41:25,054][systemd][INFO ] raw systemd input received: lvm-28-7f4113c8-c5cf-4f70-9f7a-7a32de9d6587 [2020-03-31 16:41:25,054][systemd][INFO ] raw systemd input received: lvm-30-8a70ad95-1c79-4502-a9a3-d5d7b9df84b6 [2020-03-31 16:41:25,054][systemd][INFO ] raw systemd input received: lvm-31-a8efb7db-686b-4789-a9c4-01442c28577f [2020-03-31 16:41:25,096][systemd][INFO ] parsed sub-command: lvm, extra data: 28-7f4113c8-c5cf-4f70-9f7a-7a32de9d6587 [2020-03-31 16:41:25,096][systemd][INFO ] parsed sub-command: lvm, extra data: 30-8a70ad95-1c79-4502-a9a3-d5d7b9df84b6 [2020-03-31 16:41:25,054][systemd][INFO ] raw systemd input received: lvm-33-7d688fc1-ed7b-45ae-ac0e-7b1787e0b64f [2020-03-31 16:41:25,096][systemd][INFO ] parsed sub-command: lvm, extra data: 31-a8efb7db-686b-4789-a9c4-01442c28577f [2020-03-31 16:41:25,068][systemd][INFO ] raw systemd input received: lvm-29-3e52d340-5416-46e6-b697-c15ca85f6883 [2020-03-31 16:41:25,096][systemd][INFO ] parsed sub-command: lvm, extra data: 33-7d688fc1-ed7b-45ae-ac0e-7b1787e0b64f [2020-03-31 16:41:25,068][systemd][INFO ] raw systemd input received: lvm-32-3841a62d-d6bc-404a-8762-163530b2d5d4 [2020-03-31 16:41:25,096][systemd][INFO ] parsed sub-command: lvm, extra data: 29-3e52d340-5416-46e6-b697-c15ca85f6883 [2020-03-31 16:41:25,096][systemd][INFO ] parsed sub-command: lvm, extra data: 32-3841a62d-d6bc-404a-8762-163530b2d5d4 [2020-03-31 16:41:25,108][ceph_volume.process][INFO ] Running command: /usr/sbin/ceph-volume lvm trigger 29-3e52d340-5416-46e6-b697-c15ca85f6883 ceph-volume.log 2-163530b2d5d4 [2020-03-31 17:17:23,679][ceph_volume.process][INFO ] Running command: /bin/systemctl enable --runtime ceph-osd@31 [2020-03-31 17:17:23,863][ceph_volume.process][INFO ] Running command: /bin/systemctl enable --runtime ceph-osd@30 [2020-03-31 17:17:24,045][ceph_volume.process][INFO ] Running command: /bin/systemctl enable --runtime ceph-osd@33 [2020-03-31 17:17:24,241][ceph_volume.process][INFO ] Running command: /bin/systemctl enable --runtime ceph-osd@32 [2020-03-31 17:17:24,449][ceph_volume.process][INFO ] Running command: /bin/systemctl enable --runtime ceph-osd@28 [2020-03-31 17:17:24,629][ceph_volume.process][INFO ] Running command: /bin/systemctl enable --runtime ceph-osd@29 [2020-03-31 17:17:24,652][ceph_volume.process][INFO ] stderr Created symlink /run/systemd/system/ceph-osd.target.wants/ceph-osd@31.service → /lib/systemd/system/ceph-osd@.service. [2020-03-31 17:17:24,664][ceph_volume.process][INFO ] stderr Created symlink /run/systemd/system/ceph-osd.target.wants/ceph-osd@30.service → /lib/systemd/system/ceph-osd@.service. [2020-03-31 17:17:24,872][ceph_volume.process][INFO ] Running command: /bin/systemctl start ceph-osd@31 [2020-03-31 17:17:24,875][ceph_volume.process][INFO ] stderr Created symlink /run/systemd/system/ceph-osd.target.wants/ceph-osd@33.service → /lib/systemd/system/ceph-osd@.service. [2020-03-31 17:17:25,072][ceph_volume.process][INFO ] stderr Created symlink /run/systemd/system/ceph-osd.target.wants/ceph-osd@32.service → /lib/systemd/system/ceph-osd@.service. [2020-03-31 17:17:25,075][ceph_volume.process][INFO ] Running command: /bin/systemctl start ceph-osd@30 [2020-03-31 17:17:25,282][ceph_volume.process][INFO ] Running command: /bin/systemctl start ceph-osd@33 [2020-03-31 17:17:25,497][ceph_volume.process][INFO ] stderr Created symlink /run/systemd/system/ceph-osd.target.wants/ceph-osd@28.service → /lib/systemd/system/ceph-osd@.service. [2020-03-31 17:17:25,499][ceph_volume.process][INFO ] Running command: /bin/systemctl start ceph-osd@32 [2020-03-31 17:17:25,520][ceph_volume.process][INFO ] stderr Created symlink /run/systemd/system/ceph-osd.target.wants/ceph-osd@29.service → /lib/systemd/system/ceph-osd@.service. [2020-03-31 17:17:25,705][ceph_volume.process][INFO ] Running command: /bin/systemctl start ceph-osd@28 [2020-03-31 17:17:25,887][ceph_volume.process][INFO ] Running command: /bin/systemctl start ceph-osd@29 -- Lomayani