Ceph

Add and remove `noout` flag on specific osd

• ceph osd add-noout osd.{id}
• ceph osd rm-noout osd.{id}

Add and remove 'noout' flag from node

• ceph osd set-group noout {node}
• ceph osd unset-group noout {node}

Destroy OSD

Needs to be executed on the node with the OSD

• ceph osd safe-to-destroy osd.{id}
• systemctl stop ceph-osd@{id}
• pveceph osd destroy {id}
• ceph-volume lvm zap /dev/sd[X] --destroy

Create OSD

Needs to be executed on the node with the OSD

• pveceph osd create /dev/sd[X] --encrypted 1 --crush-device-class hdd

Change device class

• ceph osd crush rm-device-class osd.{id}
• ceph osd crush set-device-class [hdd|ssd|nvme] osd.{id}