OSD
Manage OSDs
OSD
Get OSD metadata
$ ceph osd metadata <id_osd>
Count object store by type
$ ceph osd count-metadata osd_objectstore
Get all OSDs version
$ ceph tell osd.* version
Get OSD tree
$ ceph osd tree
List all OSD device class
$ ceph osd crush class ls
List OSD by class
$ ceph osd crush class ls-osd <class>
Remove OSD device class
$ ceph osd crush rm-device-class osd.<id_osd>
Multiple OSD could be specified at the same time
Add an OSD device class
$ ceph osd crush set-device-class <class> osd.<id_osd>
Multiple OSD could be specified at the same time
Map device and osd
$ ceph device ls
OLD WAYS
Dump OSD config
$ ceph daemon osd.<id_osd> config show
Dump all OSD config
$ ceph tell osd.* config get <key>