Re: [Duplicity-talk] Merge daily backups?

[covici]

edgar.soldin--- via Duplicity-talk <address@hidden> wrote:

> On 18.07.2016 08:17, Greg Bell via Duplicity-talk wrote:
> > Hi Duplicity,
> > 
> > My use-case is similar to this thread: 
> > http://lists.nongnu.org/archive/html/duplicity-talk/2016-06/msg00020.html
> > 
> > But my backups are over the internet to a remote host.  So my full backup 
> > will take weeks.
> > 
> > And I want to do daily incrementals.
> > 
> > According to the above thread, that'd be a bad idea.  Ghozlane recommended 
> > the remove-older-than and remove-all-inc-of-but-n-full options.
> > 
> > Does the remove-all-inc-of-but-n-full merge the incrementals into one?
> > 
> > Ideally I'd like to have my daily backups result in just a few incremental 
> > sets (varying between 1 and n depending on how often I merge).  The idea of 
> > thousands of incremental sets, reliant on each other for the backup's 
> > integrity, is scary.
> > 
> > Am I off in the weeds here?
> > 
> 
> nope, long chains are risky! unfortunately does duplicity not sport a merge 
> feature, which would be kind of traffic intensive anyways, as all volumes 
> have to be downloaded, processed and uploaded to the backend again.
> 
> what duplicity users usually do is to keep an eye on chain length and decide 
> a new chain interval that fit's their purpose and force full backups then. as 
> this sometimes takes long to process/upload the usual workaround is to backup 
> to a local file:// target and sync this folder to a backend of choice w/ an 
> appropriate client.
> 
> if you are feeling adventurous, you may copy the full backup (the file names 
> are quite intuitive) to a new folder and run your new incremental against 
> that. that's a hack, known to work.
> 
> remember - backup is about data safety. run a verify from time to time.

I have a couple of questions about this.  My last full backup took 55
hours, if I run a verify won't it try to restore every file and compare
with the local copy -- at least that is what the manual says?  Also, if
I try your trick of moving the full backup to another folder, how do I
tell duplicity to use that folder and how do I then delete the old
incremental backups?

-- 
Your life is like a penny.  You're going to lose it.  The question is:
How do
you spend it?

         John Covici
         address@hidden