FAQ regarding change of compression settings. Fixes #4222

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Manuel Riel 2019-01-31 12:58:33 +08:00 committed by Thomas Waldmann
parent 585dd6b59b
commit e5b880f222
1 changed files with 9 additions and 0 deletions

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@ -289,6 +289,15 @@ the :ref:`borg_recreate` command to rewrite all archives with a
different ``--exclude`` pattern. See the examples in the
:ref:`borg_recreate` manpage for more information.
Can I safely change the compression level or algorithm?
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The compression level and algorithm don't affect deduplication. Chunk ID hashes
are calculated *before* compression. New compression settings
will only be applied to new chunks, not existing chunks. So it's safe
to change them.
Security
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