From d8766df998642007d00ea818f2d97766a5aa29a2 Mon Sep 17 00:00:00 2001 From: Thomas Waldmann Date: Fri, 22 Sep 2017 23:08:33 +0200 Subject: [PATCH] docs: add note about metadata dedup and --no[ac]time, fixes #2518 --- docs/usage/notes.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/docs/usage/notes.rst b/docs/usage/notes.rst index 85648382e..c45ef3f8c 100644 --- a/docs/usage/notes.rst +++ b/docs/usage/notes.rst @@ -50,6 +50,17 @@ a new repository when changing chunker params. For more details, see :ref:`chunker_details`. +``--noatime / --noctime`` +~~~~~~~~~~~~~~~~~~~~~~~~~ + +You can use these ``borg create`` options to not store the respective timestamp +into the archive, in case you do not really need it. + +Besides saving a little space for the not archived timestamp, it might also +affect metadata stream deduplication: if only this timestamp changes between +backups and is stored into the metadata stream, the metadata stream chunks +won't deduplicate just because of that. + ``--umask`` ~~~~~~~~~~~