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Merge pull request #5057 from fantasya-pbem/docs/2929_Document-delete-data 

[DOCS] #2929 – Document how to completely delete data
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@ -335,11 +335,19 @@ also supports the ``--glob-archives`` parameter.
How do I remove files from an existing backup? How do I remove files from an existing backup?
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Say you now want to remove old logfiles because you changed your A file is only removed from a BorgBackup repository if all archives that contain
backup policy as described above. The only way to do this is to use the file are deleted and the corresponding data chunks are removed from the
the :ref:`borg_recreate` command to rewrite all archives with a repository There are two ways how to remove files from a repository.
different ``--exclude`` pattern. See the examples in the
:ref:`borg_recreate` manpage for more information. 1. Use :ref:`borg_delete` to remove all archives that contain the files. This
will of course delete everything in the archive, not only some files.
2. If you really want to remove only some specific files, you can run the
:ref:`borg_recreate` command to rewrite all archives with a different
``--exclude`` pattern. See the examples in the manpage for more information.
Finally, run :ref:`borg_compact` with the ``--threshold 0`` option to delete the
data chunks from the repository.
Can I safely change the compression level or algorithm? Can I safely change the compression level or algorithm?
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