Re: [rdiff-backup-users] logarithmic scheduling

[Sherrard Burton]

and it's probably worth noting, just for clarity, that the reason that 
rdiff-backup couldn't have this functionality is because of the nature 
of incremental backups. since each backup is based on a diff from the 
most recent one before it, they are like a chain. if you break one link 
(delete any file in the middle) your chain is useless.

Alec Berryman wrote:
> begin  quotation of Rainer Zocholl on 2004-12-12 22:17:00 +0100:
>
>
> > Can this be done with rdiff-backup ?
>
>
> rdiff-backup has no concept of backup levels and cannot selectively
> purge revisions.  If you want to emulate backup levels with
> rdiff-backup, you're going to need a lot more space and use a separate
> backup location for each level, which more or less negates any benefit
> gained from using levels.
>
> I'm not sure that implementing backup levels in rdiff-backup would
> provide a huge space savings - rdiff-backup just stores the difference
> between two revisions, and if the file doesn't change much, no big
> deal, small diff.
>
>
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