Re: [Duplicity-talk] are periodic full backups necessary?

[Gabriel Ambuehl]

On Saturday 19 January 2008 23:02:28 Adam Megacz wrote:
> What are the consequences of never doing a full backup with
> duplicity's "original and forward diffs" format?  Will the time
> required for an incremental backup increase in proportion to how many
> incrementals there have been since the last full backup?  Or is the
> backup time independent of how "far back" the most recent full backup
> was?

Restore needs to process every incremental backup up to the point where you 
want to restore.

Now there is another reason why you'd probably want periodic full backups: 
Full backups are rather simple technically whereas incremental ones the way 
duplicity does them are quite involved. So in case something goes wrong, you  
should always be able to restore the full backup.

(This assumes there are not any bit flips involved making it impossible to 
decrypt some encrypted archives which is why I still like the idea of adding 
par2-like redundancy..)

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