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Re: [Duplicity-talk] Feature suggestion: Forward error correction
From: |
Kenneth Loafman |
Subject: |
Re: [Duplicity-talk] Feature suggestion: Forward error correction |
Date: |
Tue, 07 Aug 2007 07:31:57 -0500 |
User-agent: |
Thunderbird 1.5.0.12 (X11/20070604) |
Peter Schuller wrote:
> Hello,
>
> I am just going to go ahead and suggest the feature, since I have to admit I
> probably will not get to it myself even though I would like to.
>
> I am continuously paranoid about random bitflips and other forms of
> corruption. Especially when the effect of a single bitflip can have a large
> impact (consider e.g., backup up rdiff-backup directories with duplicity; a
> bitflip in the wrong place and the whole archive is suddenly unusable by
> rdiff-backup).
>
> It would be nice to apply some forward error correction to the backups. This
> seems like something very practical too given that duplicity already backs up
> in terms of volumes of sufficient size to make the use of existing tools such
> as par2 usable.
>
> In the case of par2, duplicity could use par2 and upload the par2 files along
> with each volume and support using it during extraction in the event of
> broken volumes (and perhaps checking during a verification).
I'm looking into this for the future.
...Ken
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