1 .. _ceph-volume-simple-systemd:
5 Upon startup, it will identify the logical volume by loading the JSON file in
6 ``/etc/ceph/osd/{id}-{uuid}.json`` corresponding to the instance name of the
9 After identifying the correct volume it will then proceed to mount it by using
10 the OSD destination conventions, that is::
12 /var/lib/ceph/osd/{cluster name}-{osd id}
14 For our example OSD with an id of ``0``, that means the identified device will
18 /var/lib/ceph/osd/ceph-0
21 Once that process is complete, a call will be made to start the OSD::
23 systemctl start ceph-osd@0
25 The systemd portion of this process is handled by the ``ceph-volume simple
26 trigger`` sub-command, which is only in charge of parsing metadata coming from
27 systemd and startup, and then dispatching to ``ceph-volume simple activate`` which
28 would proceed with activation.