Re: [Duplicity-talk] Redundancy?

[Lluís Batlle i Rossell]

On Thu, May 23, 2013 at 06:55:24PM +0200, Mikołaj Czyż wrote:
> But having one extra volume as a XOR result seems (naively) like not so
> complicated idea, doesn't it?

Exactly, that's why I implemented it in my case.

> On Thu, May 23, 2013 at 6:48 PM, Lluís Batlle i Rossell <address@hidden>wrote:
> 
> > On Thu, May 23, 2013 at 06:43:47PM +0200, Mikołaj Czyż wrote:
> > > Thanks. But as duplicity uses checksums extensively, etc. why not add
> > some
> > > level of redundancy?
> > > (on the other hand I believe there must be good reasons not to implement
> > it
> > > if it is still not there)
> >
> > In fact I don't use duplicity much; I use mainly a program I wrote,
> > 'btar', and
> > there I added at least one block of redundancy with XOR. :)
> >
> > More redundancy is a bit more complicated (requiring lots of memory).
> >
> > > On Thu, May 23, 2013 at 6:39 PM, Lluís Batlle i Rossell <
> > address@hidden>wrote:
> > >
> > > > On Thu, May 23, 2013 at 06:35:13PM +0200, Mikołaj Czyż wrote:
> > > > > Are there any works on adding some form of archive redundancy to
> > > > duplicity?
> > > > >
> > > > > If I understand correctly one bit-flip can destroy the whole
> > duplicity
> > > > > backup, am I right?
> > > >
> > > > It will destroy one file of the backup, I think. The backup has
> > multiple
> > > > files.
> > > >
> > > > It will require hand work, but it's not that the whole backup will
> > > > disappear,
> > > > iiuc.
> > > >
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