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33 lines
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33 lines
1.0 KiB
ReStructuredText
.. _ceph-volume-simple:
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``simple``
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==========
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Implements the functionality needed to manage OSDs from the ``simple`` subcommand:
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``ceph-volume simple``
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**Command Line Subcommands**
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* :ref:`ceph-volume-simple-scan`
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* :ref:`ceph-volume-simple-activate`
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* :ref:`ceph-volume-simple-systemd`
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By *taking over* management, it disables all ``ceph-disk`` systemd units used
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to trigger devices at startup, relying on basic (customizable) JSON
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configuration and systemd for starting up OSDs.
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This process involves two steps:
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#. :ref:`Scan <ceph-volume-simple-scan>` the running OSD or the data device
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#. :ref:`Activate <ceph-volume-simple-activate>` the scanned OSD
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The scanning will infer everything that ``ceph-volume`` needs to start the OSD,
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so that when activation is needed, the OSD can start normally without getting
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interference from ``ceph-disk``.
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As part of the activation process the systemd units for ``ceph-disk`` in charge
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of reacting to ``udev`` events, are linked to ``/dev/null`` so that they are
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fully inactive.
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