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Merge pull request #48665 from zdover23/wip-doc-2022-10-30-ceph-volume-lvm-prepare-datri-notes
doc/ceph-volume: improve prepare.rst Reviewed-by: Cole Mitchell <cole.mitchell@gmail.com>
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``prepare``
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===========
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This subcommand facilitates the setup of :term:`filestore` or
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:term:`bluestore`. Before you run ``ceph-volume lvm prepare``, we recommend
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that you provision a logical volume. Then you can run ``prepare`` on that
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logical volume.
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Before you run ``ceph-volume lvm prepare``, we recommend that you provision a
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logical volume. Then you can run ``prepare`` on that logical volume.
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``prepare`` adds metadata to logical volumes but does not alter them in any
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other way.
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@ -16,9 +14,9 @@ other way.
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``prepare`` uses :term:`LVM tags` to assign several pieces of metadata to a
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logical volume. Volumes tagged in this way are easier to identify and easier to
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use with Ceph. :term:`LVM tags` identify logical volumes by the role that they
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play in the Ceph cluster (for example: journal, filestore, or bluestore).
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play in the Ceph cluster (for example: BlueStore data or BlueStore WAL+DB).
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:term:`Bluestore<bluestore>` is the default backend. Ceph permits changing
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:term:`BlueStore<bluestore>` is the default backend. Ceph permits changing
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the backend, which can be done by using the following flags and arguments:
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* :ref:`--filestore <ceph-volume-lvm-prepare_filestore>`
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