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.. _rados-operations:
====================
Cluster Operations
====================
.. raw:: html
<table><colgroup><col width="50%"><col width="50%"></colgroup><tbody valign="top"><tr><td><h3>High-level Operations</h3>
High-level cluster operations consist primarily of starting, stopping, and
restarting a cluster with the ``ceph`` service; checking the cluster's health;
and, monitoring an operating cluster.
.. toctree::
:maxdepth: 1
operating
health-checks
monitoring
monitoring-osd-pg
user-management
pg-repair
pgcalc/index
.. raw:: html
</td><td><h3>Data Placement</h3>
Once you have your cluster up and running, you may begin working with data
placement. Ceph supports petabyte-scale data storage clusters, with storage
pools and placement groups that distribute data across the cluster using Ceph's
CRUSH algorithm.
.. toctree::
:maxdepth: 1
data-placement
pools
erasure-code
cache-tiering
placement-groups
upmap
read-balancer
balancer
crush-map
crush-map-edits
stretch-mode
change-mon-elections
.. raw:: html
</td></tr><tr><td><h3>Low-level Operations</h3>
Low-level cluster operations consist of starting, stopping, and restarting a
particular daemon within a cluster; changing the settings of a particular
daemon or subsystem; and, adding a daemon to the cluster or removing a daemon
from the cluster. The most common use cases for low-level operations include
growing or shrinking the Ceph cluster and replacing legacy or failed hardware
with new hardware.
.. toctree::
:maxdepth: 1
add-or-rm-osds
add-or-rm-mons
devices
bluestore-migration
Command Reference <control>
.. raw:: html
</td><td><h3>Troubleshooting</h3>
Ceph is still on the leading edge, so you may encounter situations that require
you to evaluate your Ceph configuration and modify your logging and debugging
settings to identify and remedy issues you are encountering with your cluster.
.. toctree::
:maxdepth: 1
../troubleshooting/community
../troubleshooting/troubleshooting-mon
../troubleshooting/troubleshooting-osd
../troubleshooting/troubleshooting-pg
../troubleshooting/log-and-debug
../troubleshooting/cpu-profiling
../troubleshooting/memory-profiling
.. raw:: html
</td></tr></tbody></table>
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