Hello, As explained before, I am writing an article on open source software which include deduplication. Here is how I proposed to describe tahoe-LAFS. tahoe-LAFS is not really a backup software but rather a storage solution. The primary objective is to secure your data, either for privacy or for safety (against damage). To do so, it stores your encrypted data (encrypted at the source) on several machines organized in a network with a configurable policy (specifying K=2 and N=5 for instance, will spread your data on 5 machines, 2 of which need at least to be available to access your data). A few remarkable points: - I like its "paranoid" approach. The idea is to trust no one (and especially not your online storage provider) - Don't need any redundant PAR2 checksum, given that the data are duplicated and spread on the network (I however recommend to make another backup on another media from times to times) - Community et mailing-list are very active and very helpful (post a message to see how welcoming they are !) - Documentation is excellent - You can join an already existing network (like VolunteerGrid2) by adding your machine. That way all members of the network will have access to a part of your (encrypted !) data et vice versa. It is quite a psychological jump to accept (you have to trust encryption). - You can also rent storage nodes to Least Authority Enterprises - No delta encoding but has deduplication at the source, however only on a file level. - Works on Linux, Mac OS X and Windows. I have however a few doubts on the Windows compatibility for managing locked files. But you can use Duplicati which uses Windows VSS and can use tahoe-LAFS as backend. - In case of backup interruption, resume is possible but you have to upload the whole file again. - Encryption is with AES-128 (soon to be combined with XSalsa20) I would be very interested to have any comment. But please be aware that I have to keep it quite short and simple. Sorry for the bad translation from french ! Thanks, _______________________________________________ tahoe-dev mailing list tahoe-dev@tahoe-lafs.org https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev ----- End forwarded message ----- -- Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE