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97 lines
3.6 KiB
ReStructuredText
97 lines
3.6 KiB
ReStructuredText
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What is Borg?
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-------------
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Borg is a deduplicating backup program. The main goal of Borg is to provide
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an efficient and secure way to backup data. The data deduplication
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technique used makes Borg suitable for daily backups since only changes
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are stored.
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Borg is a fork of `Attic <https://github.com/jborg/attic>`_ and maintained by "`The Borg Collective <https://github.com/borgbackup/borg/blob/master/AUTHORS>`_".
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BORG IS NOT COMPATIBLE WITH ORIGINAL ATTIC.
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EXPECT THAT WE WILL BREAK COMPATIBILITY REPEATEDLY WHEN MAJOR RELEASE NUMBER
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CHANGES (like when going from 0.x.y to 1.0.0). Please read CHANGES document.
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NOT RELEASED DEVELOPMENT VERSIONS HAVE UNKNOWN COMPATIBILITY PROPERTIES.
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THIS IS SOFTWARE IN DEVELOPMENT, DECIDE YOURSELF WHETHER IT FITS YOUR NEEDS.
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Read `issue #1 <https://github.com/borgbackup/borg/issues/1>`_ on the issue tracker, goals are being defined there.
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Please also see the `LICENSE <https://github.com/borgbackup/borg/blob/master/LICENSE>`_ for more informations.
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Easy to use
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~~~~~~~~~~~
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Initialize backup repository and create a backup archive::
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$ borg init /mnt/backup
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$ borg create -v /mnt/backup::documents ~/Documents
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For a graphical frontend refer to our complementary project `BorgWeb <https://github.com/borgbackup/borgweb>`_.
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Main features
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~~~~~~~~~~~~~
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Space efficient storage
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Variable block size deduplication is used to reduce the number of bytes
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stored by detecting redundant data. Each file is split into a number of
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variable length chunks and only chunks that have never been seen before are
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compressed and added to the repository.
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The content-defined chunking based deduplication is applied to remove
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duplicate chunks within:
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* the current backup data set (even inside single files / streams)
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* current and previous backups of same machine
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* all the chunks in the same repository, even if coming from other machines
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This advanced deduplication method does NOT depend on:
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* file/directory names staying the same (so you can move your stuff around
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without killing the deduplication, even between machines sharing a repo)
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* complete files or time stamps staying the same (if a big file changes a
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little, only a few new chunks will be stored - this is great for VMs or
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raw disks)
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* the absolute position of a data chunk inside a file (stuff may get shifted
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and will still be found by the deduplication algorithm)
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Optional data encryption
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All data can be protected using 256-bit AES encryption and data integrity
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and authenticity is verified using HMAC-SHA256.
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Off-site backups
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Borg can store data on any remote host accessible over SSH. This is
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most efficient if Borg is also installed on the remote host.
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Backups mountable as filesystems
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Backup archives are mountable as userspace filesystems for easy backup
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verification and restores.
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What do I need?
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---------------
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Borg requires Python 3.2 or above to work.
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Borg also requires a sufficiently recent OpenSSL (>= 1.0.0).
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In order to mount archives as filesystems, llfuse is required.
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How do I install it?
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--------------------
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::
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$ pip3 install borgbackup
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Where are the docs?
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-------------------
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Go to https://borgbackup.github.io/ for a prebuilt version of the documentation.
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You can also build it yourself from the docs folder.
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Where are the tests?
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--------------------
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The tests are in the borg/testsuite package. To run the test suite use the
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following command::
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$ fakeroot -u tox # you need to have tox and pytest installed
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.. |build| image:: https://travis-ci.org/borgbackup/borg.svg
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:alt: Build Status
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:target: https://travis-ci.org/borgbackup/borg
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