Re: [Duplicity-talk] Incremental Backups always against the last full snapshot

[Lluís Batlle i Rossell]

On Sat, Dec 17, 2011 at 01:17:33PM +0100, Jan Niggemann wrote:
> Am 17.12.2011 13:06, schrieb Daniel Weigl:
> >Wouldn't it be good, to have a option to set duplicity to calculate
> >all  incrementals against the last full snapshot. I know that these
> >means the  incrementals will grow over the time, but on the other
> >hand
> >restores would  be much faster.
> I like the idea, that way a corrupted increment would not result in
> a broken chain.
> Well, there wouldn't be a chain anyway, just 1:n (last_full :
> increments)...

That's the approach usually done by 'tar', and I also took it in 'btar':

About level 0, level 1, ... backups:
http://www.gnu.org/software/tar/manual/html_node/Incremental-Dumps.html

btar:
http://viric.name/cgi-bin/btar
where "-d xxx" say on what backup to base the incremental backup.
"-d level0file -d level1file" makes a level 2 backup.

Regards,
Lluís.