docs/doc/source/storage/kubernetes/configure-the-internal-ceph-storage-backend.rst
Juanita-Balaraj 63cd4f5fdc CephFS RWX Support in Host-based Ceph
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Change-Id: Icd7b08ab69273f6073b960a13cf59905532f851a
Signed-off-by: Juanita-Balaraj <juanita.balaraj@windriver.com>
2021-05-03 16:39:45 -04:00

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.. oim1582827207220
.. _configure-the-internal-ceph-storage-backend:
===========================================
Configure the Internal Ceph Storage Backend
===========================================
This section provides steps to configure the internal Ceph storage backend.
Depending on the system type, |prod| can be configured with an internal
Ceph storage backend on controller nodes or on dedicated storage nodes.
.. rubric:: |prereq|
Unlock all controllers before you run the following commands to configure
the internal Ceph storage backend.
.. rubric:: |proc|
.. _configuring-the-internal-ceph-storage-backend-steps-xdm-tmz-vkb:
#. Run the following command:
.. code-block:: none
~(keystone_admin)$ system storage-backend-add ceph --confirmed
#. Wait for Ceph storage to be configured. Run the following command to
check if Ceph storage is configured:
.. code-block:: none
~(keystone_admin)$ system storage-backend-list
#. On a Standard configuration with Controller Storage, that is, where
Ceph OSDs are to be configured on the controller nodes, configure the
third Ceph monitor instance on a worker node, using the following
command:
.. code-block:: none
~(keystone_admin)$ system ceph-mon-add <worker_node>
.. note::
For Standard configuration with dedicated Storage, that is, where
Ceph OSDs are to be configured on dedicated Storage nodes, the
third Ceph monitor instance is configured by default on the first
storage node.
.. note::
CephFS support requires Metadata servers \(MDS\) to be deployed. When
CephFS is configured, an MDS is deployed automatically along with each
node that has been configured to run a Ceph Monitor.
#. Configure Ceph OSDs. For more information, see :ref:`Provision
Storage on a Controller or Storage Host Using Horizon
<provision-storage-on-a-controller-or-storage-host-using-horizon>`.