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https://github.com/ceph/ceph
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58 lines
1.7 KiB
ReStructuredText
58 lines
1.7 KiB
ReStructuredText
===============
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Configuration
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===============
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Ceph can run with a cluster containing thousands of Object Storage Devices
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(OSDs). A minimal system will have at least two OSDs for data replication. To
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configure OSD clusters, you must provide settings in the configuration file.
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Ceph provides default values for many settings, which you can override in the
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configuration file. Additionally, you can make runtime modification to the
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configuration using command-line utilities.
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When Ceph starts, it activates three daemons:
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- ``ceph-osd`` (mandatory)
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- ``ceph-mon`` (mandatory)
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- ``ceph-mds`` (mandatory for cephfs only)
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Each process, daemon or utility loads the host's configuration file. A process
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may have information about more than one daemon instance (*i.e.,* multiple
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contexts). A daemon or utility only has information about a single daemon
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instance (a single context).
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.. note:: Ceph can run on a single host for evaluation purposes.
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.. raw:: html
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<table cellpadding="10"><colgroup><col width="50%"><col width="50%"></colgroup><tbody valign="top"><tr><td><h3>Configuring the Object Store</h3>
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For general object store configuration, refer to the following:
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.. toctree::
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Disks and Filesystems <filesystem-recommendations>
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ceph-conf
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mon-osd-interaction
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.. raw:: html
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</td><td><h3>Reference</h3>
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To optimize the performance of your cluster, refer to the following:
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.. toctree::
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General Settings <general-config-ref>
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Monitor Settings <mon-config-ref>
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OSD Settings <osd-config-ref>
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Filestore Settings <filestore-config-ref>
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Journal Settings <journal-ref>
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Log / Debug Settings <log-and-debug-ref>
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Messaging Settings <ms-ref>
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.. raw:: html
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</td></tr></tbody></table>
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