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Diffstat (limited to 'doc/ceph-volume/simple/index.rst')
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diff --git a/doc/ceph-volume/simple/index.rst b/doc/ceph-volume/simple/index.rst new file mode 100644 index 000000000..315dea99a --- /dev/null +++ b/doc/ceph-volume/simple/index.rst @@ -0,0 +1,32 @@ +.. _ceph-volume-simple: + +``simple`` +========== +Implements the functionality needed to manage OSDs from the ``simple`` subcommand: +``ceph-volume simple`` + +**Command Line Subcommands** + +* :ref:`ceph-volume-simple-scan` + +* :ref:`ceph-volume-simple-activate` + +* :ref:`ceph-volume-simple-systemd` + + +By *taking over* management, it disables all ``ceph-disk`` systemd units used +to trigger devices at startup, relying on basic (customizable) JSON +configuration and systemd for starting up OSDs. + +This process involves two steps: + +#. :ref:`Scan <ceph-volume-simple-scan>` the running OSD or the data device +#. :ref:`Activate <ceph-volume-simple-activate>` the scanned OSD + +The scanning will infer everything that ``ceph-volume`` needs to start the OSD, +so that when activation is needed, the OSD can start normally without getting +interference from ``ceph-disk``. + +As part of the activation process the systemd units for ``ceph-disk`` in charge +of reacting to ``udev`` events, are linked to ``/dev/null`` so that they are +fully inactive. |