remove ceph code

[stor4nfv.git] / src / ceph / doc / cephfs / createfs.rst

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-========================
-Create a Ceph filesystem
-========================
-
-.. tip::
-
-    The ``ceph fs new`` command was introduced in Ceph 0.84.  Prior to this release,
-    no manual steps are required to create a filesystem, and pools named ``data`` and
-    ``metadata`` exist by default.
-
-    The Ceph command line now includes commands for creating and removing filesystems,
-    but at present only one filesystem may exist at a time.
-
-A Ceph filesystem requires at least two RADOS pools, one for data and one for metadata.
-When configuring these pools, you might consider:
-
-- Using a higher replication level for the metadata pool, as any data
-  loss in this pool can render the whole filesystem inaccessible.
-- Using lower-latency storage such as SSDs for the metadata pool, as this
-  will directly affect the observed latency of filesystem operations
-  on clients.
-
-Refer to :doc:`/rados/operations/pools` to learn more about managing pools.  For
-example, to create two pools with default settings for use with a filesystem, you
-might run the following commands:
-
-.. code:: bash
-
-    $ ceph osd pool create cephfs_data <pg_num>
-    $ ceph osd pool create cephfs_metadata <pg_num>
-
-Once the pools are created, you may enable the filesystem using the ``fs new`` command:
-
-.. code:: bash
-
-    $ ceph fs new <fs_name> <metadata> <data>
-
-For example:
-
-.. code:: bash
-
-    $ ceph fs new cephfs cephfs_metadata cephfs_data
-    $ ceph fs ls
-    name: cephfs, metadata pool: cephfs_metadata, data pools: [cephfs_data ]
-
-Once a filesystem has been created, your MDS(s) will be able to enter
-an *active* state.  For example, in a single MDS system:
-
-.. code:: bash
-
-    $ ceph mds stat
-    e5: 1/1/1 up {0=a=up:active}
-
-Once the filesystem is created and the MDS is active, you are ready to mount
-the filesystem.  If you have created more than one filesystem, you will
-choose which to use when mounting.
-
-       - `Mount CephFS`_
-       - `Mount CephFS as FUSE`_
-
-.. _Mount CephFS: ../../cephfs/kernel
-.. _Mount CephFS as FUSE: ../../cephfs/fuse