[tahoe-dev] Potential use for personal backup

[Saint Germain]

On 22 May 2012 17:44, Shawn Willden <shawn at willden.org> wrote:
>> If I have my computer at home and a remote server somewhere, I want to
>> use 1-out-of-2 configuration in case I lost either of them.
>
> If you can maintain pretty high uptime and contribute at least 500 GB, you
> might consider joining VolunteerGrid2.  Then instead of 1 of 2 you can do,
> say, 10 of 20.  Or 15 of 20.
>

Interesting. However I really don't need this level of redundancy,
pictures of me are not so critical ;-)

>> So tahoe-LAFS works in that case basically as Dropbox synchronisation
>> (with the encryption).
>> Is there some kind of optimization which only transfer modified parts
>> to the other nodes, or is the whole file transfer each time it is
>> modified ? Especially for VM.
>
> It's whole-file.
>

Ok, definitely a problem for VM then.

>>
>> Same question for moved files.
>
> Moved files are not re-uploaded.  As long as the content is the same, Tahoe
> will recognize that the file is already in the grid.
>

Ok good for movies, pictures and mp3 then.

>>
>> If I have a VM of 1 Go that I want to regularly backup on the remote
>> server. Do I get to use 1 Go on the home computer and 1 Go on the
>> remote computer for the current version and 1 Go for each backup of
>> the VM ?
>
>
> I don't understand what you mean by "1 Go".
>

Giga-octets. Sorry 1 Gigabyte then.

Thanks !