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doc: clarify QEMU rbd cache settings

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http://tracker.ceph.com/issues/17665
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
This commit is contained in:
Jason Dillaman 2016-10-21 14:49:13 -04:00
parent eb9cf0bda0
commit cb897a4e98
1 changed files with 5 additions and 5 deletions
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10
doc/rbd/qemu-rbd.rst
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@ -203,12 +203,12 @@ None::
rbd_cache = false
QEMU's cache settings override Ceph's default settings (i.e., settings that are
not explicitly set in the Ceph configuration file). If you explicitly set `RBD
Cache`_ settings in your Ceph configuration file, your Ceph settings override
the QEMU cache settings. If you set cache settings on the QEMU command line, the
QEMU command line settings override the Ceph configuration file settings.
QEMU's cache settings override Ceph's cache settings (including settings that
are explicitly set in the Ceph configuration file).
.. note:: Prior to QEMU v2.4.0, if you explicitly set `RBD Cache`_ settings
in the Ceph configuration file, your Ceph settings override the QEMU cache
settings.
.. _QEMU Open Source Processor Emulator: http://wiki.qemu.org/Main_Page
.. _QEMU Manual: http://wiki.qemu.org/Manual