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130 lines
3.9 KiB
ReStructuredText
130 lines
3.9 KiB
ReStructuredText
.. _ceph-filesystem:
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=================
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Ceph Filesystem
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=================
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The Ceph Filesystem (CephFS) 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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.. note:: If you are evaluating CephFS for the first time, please review
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the best practices for deployment: :doc:`/cephfs/best-practices`
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.. ditaa::
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+-----------------------+ +------------------------+
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| | | CephFS FUSE |
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| | +------------------------+
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| | +------------------------+
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| CephFS Kernel Object | | CephFS Library |
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| | +------------------------+
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| |
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| | +------------------------+
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| | | 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 CephFS
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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(s) <add-remove-mds>
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MDS states <mds-states>
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MDS failover and standby configuration <standby>
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MDS Configuration Settings <mds-config-ref>
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Client Configuration Settings <client-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 your 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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Use the CephFS Shell <cephfs-shell>
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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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Manpage mount.fuse.ceph <../../man/8/mount.fuse.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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Deployment best practices <best-practices>
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MDS States <mds-states>
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Administrative commands <administration>
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Understanding MDS Cache Size Limits <cache-size-limits>
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POSIX compatibility <posix>
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Experimental Features <experimental-features>
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CephFS Quotas <quota>
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Using Ceph with Hadoop <hadoop>
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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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Health messages <health-messages>
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Troubleshooting <troubleshooting>
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Disaster recovery <disaster-recovery>
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Client authentication <client-auth>
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Upgrading old filesystems <upgrading>
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Configuring directory fragmentation <dirfrags>
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Configuring multiple active MDS daemons <multimds>
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Export over NFS <nfs>
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.. toctree::
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:hidden:
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Advanced: Metadata repair <disaster-recovery-experts>
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.. raw:: html
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</td></tr></tbody></table>
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For developers
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==============
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.. toctree::
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:maxdepth: 1
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Client's Capabilities <capabilities>
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libcephfs <../../api/libcephfs-java/>
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Mantle <mantle>
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