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29 lines
872 B
ReStructuredText
29 lines
872 B
ReStructuredText
.. _ceph-volume-lvm-systemd:
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systemd
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=======
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Upon startup, it will identify the logical volume using :term:`LVM tags`,
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finding a matching ID and later ensuring it is the right one with
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the :term:`OSD uuid`.
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After identifying the correct volume it will then proceed to mount it by using
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the OSD destination conventions, that is::
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/var/lib/ceph/osd/<cluster name>-<osd id>
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For our example OSD with an id of ``0``, that means the identified device will
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be mounted at::
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/var/lib/ceph/osd/ceph-0
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Once that process is complete, a call will be made to start the OSD::
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systemctl start ceph-osd@0
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The systemd portion of this process is handled by the ``ceph-volume lvm
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trigger`` sub-command, which is only in charge of parsing metadata coming from
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systemd and startup, and then dispatching to ``ceph-volume lvm activate`` which
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would proceed with activation.
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