RepoMirrors/ceph
1
0
Fork 0
mirror of https://github.com/ceph/ceph synced 2025-03-30 07:19:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

doc/cephadm: OSD memory autotuning for hyperconverged

Browse Source 
Signed-off-by: Sebastian Wagner <sewagner@redhat.com>
This commit is contained in:
Sebastian Wagner 2021-11-16 12:52:20 +01:00
parent 343708fb6e
commit 08fdb42082
No known key found for this signature in database
GPG Key ID: 8D2442807E6979F8
1 changed files with 15 additions and 3 deletions

18
doc/cephadm/install.rst
View File

@ -318,9 +318,21 @@ available and unused device:
See :ref:`cephadm-deploy-osds` for more detailed instructions.
In case the cluster runs on hardware that is used exclusively for
Ceph, it is recommended to enable ``osd_memory_target_autotune``.
See :ref:`osd_autotune`.
Enabling OSD memory autotuning
------------------------------
It is recommended to enable ``osd_memory_target_autotune``.
in order to maximise the performance of the cluster. See :ref:`osd_autotune`.
In case the cluster hardware is not exclusively used by Ceph (hyperconverged),
reduce the memory consuption of Ceph like so:
.. prompt:: bash #
# hyperconverged only:
ceph config set mgr mgr/cephadm/autotune_memory_target_ratio 0.2
Then enable memory autotuning:
.. prompt:: bash #