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Re: [Duplicity-talk] A question on the duplicity remove-older-than opti
Re: [Duplicity-talk] A question on the duplicity remove-older-than option
Mon, 17 Nov 2008 10:58:08 -0000 (UTC)
>From what I understand this will only delete "full" backup sets i.e. the
>original full backup and
all the required incramentals if the date you select doesn't fall in this time
1st: Full Backup
6th: Full Backup
If on the 11th tou decide to delete all backups available before the 4th you
would still have the
files from the 1st -> 5th as they are still required by the full backup on the
I tend to use the remove-all-but-n-full option as it seems to work better for
Heop this helps,
> Hello all,
> First of all i have to admit, i am totally new to duplicity, but
> what i have seen from it, makes me love this tool.
> There is one feature that is not totally clear to me, and i would
> really like to know how this is implemented. It is the remove-older-than
> option that you may pass
> to duplicity.
> I would like the know more about the mechanism behind this flag.
> The documentation says that this would lead to the deletion of backups
> that are older then time specified.
> I don't know if i get it right. If we have a file at time t1 that is
> added to the repository (i call it like this since the whole backup reminds
> me strongly on source
> code repositorys like cvs and svn)
> So if we have this file it would be inserted completely in the first
> insertion. I call this file f1_t1, meaning that this is the current file.
> Every change will result
> in adding its diff to the repository, right? i call the diff f1_d1 (the
> number indicates the
> incrementation rank) So if i add some changes it goes like this:
> f1_t1 -> f1_d1 -> f1_d2 -> .... -> f1_dn
> How is the deletion of older files achieved? Just deleting the diffs
> would be suicide. But the manual is somehow incomplete here, and i am really
> hot to know.
> Does duplicity just patches f1_t1 with all the diffs, or are several
> diffs merged to one big diff?
> I had a short look on the source but it takes some time to get into it,
> could you help me understand the way how you achieve the deletion?
> thank you anyway joshua bacher _______________________________________________
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