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96 lines
3.1 KiB
ReStructuredText
96 lines
3.1 KiB
ReStructuredText
=================
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Ceph Filesystem
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=================
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The :term:`Ceph Filesystem` (Ceph FS) is a POSIX-compliant filesystem that uses
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a Ceph Storage Cluster to store its data. The Ceph filesystem uses the same Ceph
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Storage Cluster system as Ceph Block Devices, Ceph Object Storage with its S3
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and Swift APIs, or native bindings (librados).
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.. important:: CephFS currently lacks a robust 'fsck' check and
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repair function. Please use caution when storing
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important data as the disaster recovery tools are
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still under development. For more information about
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using CephFS today, see :doc:`/cephfs/early-adopters`
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.. ditaa::
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+-----------------------+ +------------------------+
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| CephFS Kernel Object | | CephFS FUSE |
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+-----------------------+ +------------------------+
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+---------------------------------------------------+
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| CephFS Library (libcephfs) |
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+---------------------------------------------------+
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+---------------------------------------------------+
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| Ceph Storage Cluster Protocol (librados) |
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+---------------------------------------------------+
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+---------------+ +---------------+ +---------------+
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| OSDs | | MDSs | | Monitors |
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+---------------+ +---------------+ +---------------+
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Using the Ceph Filesystem requires at least one :term:`Ceph Metadata Server` in
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your Ceph Storage Cluster.
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.. raw:: html
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<style type="text/css">div.body h3{margin:5px 0px 0px 0px;}</style>
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<table cellpadding="10"><colgroup><col width="33%"><col width="33%"><col width="33%"></colgroup><tbody valign="top"><tr><td><h3>Step 1: Metadata Server</h3>
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To run the Ceph Filesystem, you must have a running Ceph Storage Cluster with at
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least one :term:`Ceph Metadata Server` running.
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.. toctree::
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:maxdepth: 1
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Add/Remove MDS <../../rados/deployment/ceph-deploy-mds>
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MDS Configuration <mds-config-ref>
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Journaler Configuration <journaler>
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Manpage ceph-mds <../../man/8/ceph-mds>
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.. raw:: html
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</td><td><h3>Step 2: Mount CephFS</h3>
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Once you have a healthy Ceph Storage Cluster with at least
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one Ceph Metadata Server, you may create and mount your Ceph Filesystem.
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Ensure that you client has network connectivity and the proper
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authentication keyring.
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.. toctree::
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:maxdepth: 1
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Create CephFS <createfs>
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Mount CephFS <kernel>
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Mount CephFS as FUSE <fuse>
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Mount CephFS in fstab <fstab>
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Manpage cephfs <../../man/8/cephfs>
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Manpage ceph-fuse <../../man/8/ceph-fuse>
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Manpage mount.ceph <../../man/8/mount.ceph>
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.. raw:: html
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</td><td><h3>Additional Details</h3>
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.. toctree::
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:maxdepth: 1
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Using Ceph with Hadoop <hadoop>
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libcephfs <../../api/libcephfs-java/>
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cephfs-journal-tool <cephfs-journal-tool>
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File layouts <file-layouts>
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Client eviction <eviction>
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Handling full filesystems <full>
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Troubleshooting <troubleshooting>
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Disaster recovery <disaster-recovery>
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.. raw:: html
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</td></tr></tbody></table>
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