浏览代码

FAQ regarding change of compression settings. Fixes #4222

Manuel Riel 6 年之前
父节点
当前提交
e5b880f222
共有 1 个文件被更改,包括 9 次插入0 次删除
  1. 9 0
      docs/faq.rst

+ 9 - 0
docs/faq.rst

@@ -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?
+--------------------------------------------------------
+
+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
 ########