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doc/cephfs: use 'p' flag to set layouts or quotas

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Remind users that clients must use the 'p' flag when writing file
layouts.

This PR is made in response to
https://www.reddit.com/r/ceph/comments/1gbad51/comment/ltkgd5v/

Co-authored-by: Zac Dover <zac.dover@proton.me>
Signed-off-by: TruongSinh Tran-Nguyen <i@truongsinh.pro>
This commit is contained in:
TruongSinh Tran-Nguyen 2024-10-24 13:57:49 -07:00 committed by Zac Dover
parent 25d9bedaa1
commit 13c7c9d998
2 changed files with 5 additions and 0 deletions
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2
doc/cephfs/client-auth.rst
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@ -106,6 +106,8 @@ If quotas are not enabled or if no quota is set on the mounted sub-directory,
then the overall usage of the file system will be reported irrespective of the
value of this setting.
.. _cephfs-layout-and-quota-restriction:
Layout and Quota restriction (the 'p' flag)
===========================================

3
doc/cephfs/file-layouts.rst
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@ -6,6 +6,9 @@ File layouts
The layout of a file controls how its contents are mapped to Ceph RADOS objects. You can
read and write a file's layout using *virtual extended attributes* or xattrs.
Clients must use the ``p`` flag when writing a file's layout. See :ref:`Layout
and Quota restriction (the 'p' flag) <cephfs-layout-and-quota-restriction>`.
The name of the layout xattrs depends on whether a file is a regular file or a directory. Regular
files' layout xattrs are called ``ceph.file.layout``, whereas directories' layout xattrs are called
``ceph.dir.layout``. Where subsequent examples refer to ``ceph.file.layout``, substitute ``dir`` as appropriate