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be more verbose about the great deduplication algorithm

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Thomas Waldmann 2015-07-27 23:02:52 +02:00
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commit 300c7351e7
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README.rst
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@ -38,6 +38,23 @@ Space efficient storage
variable length chunks and only chunks that have never been seen before are
compressed and added to the repository.
The content-defined chunking based deduplication is applied to remove
duplicate chunks within:
* the current backup data set (even inside single files / streams)
* current and previous backups of same machine
* all the chunks in the same repository, even if coming from other machines
This advanced deduplication method does NOT depend on:
* file/directory names staying the same (so you can move your stuff around
without killing the deduplication, even between machines sharing a repo)
* complete files or time stamps staying the same (if a big file changes a
little, only a few new chunks will be stored - this is great for VMs or
raw disks)
* the absolute position of a data chunk inside a file (stuff may get shifted
and will still be found by the deduplication algorithm)
Optional data encryption
All data can be protected using 256-bit AES encryption and data integrity
and authenticity is verified using HMAC-SHA256.