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@@ -12,6 +12,19 @@ Can I backup VM disk images?
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Yes, the :ref:`deduplication <deduplication_def>` technique used by |project_name|
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makes sure only the modified parts of the file are stored.
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+Can I backup from multiple servers into a single repository?
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+ Yes, but in order for the deduplication used by Attic to work, it
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+ needs to keep a local cache containing checksums of all file
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+ chunks already stored in the repository. This cache is stored in
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+ ``~/.cache/attic/``. If Attic detects that a repository has been
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+ modified since the local cache was updated it will need to rebuild
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+ the cache. This rebuild can be quite time consuming.
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+
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+ So, yes it's possible. But it will be most efficient if a single
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+ repository is only modified from one place. Also keep in mind that
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+ Attic will keep an exclusive lock on the repository while creating
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+ or deleting archives, which may make *simultaneous* backups fail.
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+
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Which file attributes are preserved?
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The following attributes are preserved:
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Thomas Waldmann