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66 lines
1.8 KiB
ReStructuredText
.. _ceph-volume:
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ceph-volume
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===========
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Deploy OSDs with different device technologies like lvm or physical disks using
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pluggable tools (:doc:`lvm/index` itself is treated like a plugin) and trying to
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follow a predictable, and robust way of preparing, activating, and starting OSDs.
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:ref:`Overview <ceph-volume-overview>` |
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:ref:`Plugin Guide <ceph-volume-plugins>` |
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**Command Line Subcommands**
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There is currently support for ``lvm``, and plain disks (with GPT partitions)
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that may have been deployed with ``ceph-disk``.
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* :ref:`ceph-volume-lvm`
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* :ref:`ceph-volume-simple`
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Migrating
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---------
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Starting on Ceph version 12.2.2, ``ceph-disk`` is deprecated. Deprecation
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warnings will show up that will link to this page. It is strongly suggested
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that users start consuming ``ceph-volume``.
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New deployments
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^^^^^^^^^^^^^^^
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For new deployments, :ref:`ceph-volume-lvm` is recommended, it can use any
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logical volume as input for data OSDs, or it can setup a minimal/naive logical
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volume from a device.
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Existing OSDs
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^^^^^^^^^^^^^
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If the cluster has OSDs that were provisioned with ``ceph-disk``, then
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``ceph-volume`` can take over the management of these with
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:ref:`ceph-volume-simple`. A scan is done on the data device or OSD directory,
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and ``ceph-disk`` is fully disabled.
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Encrypted OSDs
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^^^^^^^^^^^^^^
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If using encryption with OSDs, there is currently no support in ``ceph-volume``
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for this scenario (although support for this is coming soon). In this case, it
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is OK to continue to use ``ceph-disk`` until ``ceph-volume`` fully supports it.
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This page will be updated when that happens.
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.. toctree::
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:hidden:
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:maxdepth: 3
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:caption: Contents:
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intro
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systemd
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lvm/index
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lvm/activate
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lvm/prepare
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lvm/create
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lvm/scan
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lvm/systemd
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lvm/list
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lvm/zap
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simple/index
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simple/activate
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simple/scan
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simple/systemd
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