docs/doc/source/storage/kubernetes/ceph-cluster-on-a-controller-host.rst
Ron Stone f125a8b892 Remove spurious escapes (r8,dsR8)
This change addresses a long-standing issue in rST documentation imported from XML.
That import process added backslash escapes in front of various characters. The three
most common being '(', ')', and '_'.
These instances are removed.

Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Id43a9337ffcd505ccbdf072d7b29afdb5d2c997e
2023-03-01 11:19:04 +00:00

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1.3 KiB
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.. gow1564588201550
.. _ceph-cluster-on-a-controller-host:
=================================
Ceph Cluster on a Controller Host
=================================
You can add one or more Ceph disks (OSD disks) per controller host
for data storage.
.. rubric:: |context|
See :ref:`Configure Ceph OSDs on a Host <ceph-storage-pools>` for
details on configuring Ceph on a host.
For Standard-with-controller storage and All-in-one Duplex scenarios with
2x controllers, Ceph replication is nodal. For All-in-one Simplex, with a
single controller, replication is across OSDs.
For All-in-one Simplex and Duplex there is a single Ceph monitor; on
Duplex, the Ceph monitor floats between controllers. For
Standard-with-controller storage, there are 3 Ceph monitors; 2
automatically configured on each controller and the third Ceph monitor
configured on one of the worker nodes.
.. rubric:: |prereq|
The worker must be locked.
.. rubric:: |proc|
- To configure a Ceph monitor on a worker node, execute the following
command:
.. code-block:: none
~(keystone_admin)$ system ceph-mon-add compute-0
- To add OSDs on an AIO-SX, AIO-DX and Standard systems, see
:ref:`Provision Storage on a Controller or Storage Host Using Horizon
<provision-storage-on-a-controller-or-storage-host-using-horizon>` for
more information.