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docs: document behavior for filesystems with inconsistent inodes, fixes borgbackup#5770 (#5965)

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Jubjub 2021-08-25 21:43:47 +02:00 committed by GitHub
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docs/faq.rst
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@ -987,6 +987,12 @@ stable. If the directory where you mount a filesystem is different every time,
Borg assumes they are different files. This is true even if you backup these
files with relative pathnames - borg uses full pathnames in files cache regardless.
It is possible for some filesystems, such as ``mergerfs`` or network filesystems,
to return inconsistent inode numbers across runs, causing borg to consider them changed.
A workaround is to set the option ``--files-cache=ctime,size`` to exclude the inode
number comparison from the files cache check so that files with different inode
numbers won't be treated as modified.
Is there a way to limit bandwidth with Borg?
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