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Diffstat (limited to 'doc/ceph-volume/simple/systemd.rst')
| -rw-r--r-- | doc/ceph-volume/simple/systemd.rst | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/doc/ceph-volume/simple/systemd.rst b/doc/ceph-volume/simple/systemd.rst new file mode 100644 index 00000000..aa5bebff --- /dev/null +++ b/doc/ceph-volume/simple/systemd.rst @@ -0,0 +1,28 @@ +.. _ceph-volume-simple-systemd: + +systemd +======= +Upon startup, it will identify the logical volume by loading the JSON file in +``/etc/ceph/osd/{id}-{uuid}.json`` corresponding to the instance name of the +systemd unit. + +After identifying the correct volume it will then proceed to mount it by using +the OSD destination conventions, that is:: + + /var/lib/ceph/osd/{cluster name}-{osd id} + +For our example OSD with an id of ``0``, that means the identified device will +be mounted at:: + + + /var/lib/ceph/osd/ceph-0 + + +Once that process is complete, a call will be made to start the OSD:: + + systemctl start ceph-osd@0 + +The systemd portion of this process is handled by the ``ceph-volume simple +trigger`` sub-command, which is only in charge of parsing metadata coming from +systemd and startup, and then dispatching to ``ceph-volume simple activate`` which +would proceed with activation. |