[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Duplicity-talk] PAR2 for duplicity
From: |
Gabriel Ambuehl |
Subject: |
[Duplicity-talk] PAR2 for duplicity |
Date: |
Tue, 18 Mar 2008 13:29:48 +0100 |
User-agent: |
KMail/1.9.9 |
This has come up before, but I'm wondering if anyone is really interested in
it.
Since duplicity stores data encrypted, a single bitflip could theoretically
destroy a lot of data. Hence, parity as served by PAR2 and similar tools may
be desired.
There are two basic approaches: create PAR2 per backup run (i.e. for all
files) or per individual .tar.gz.gpg. The former has the advantage that the a
whole file may be missing and recovery possibly still would work. But for
recovery to work, you'd have to have all files available which is obviously
not the case if PAR2 is done per archive.
Storage requirement for the same amount of redundancy in theory is the same
(5% seems like a good default).
Thoughts?
signature.asc
Description: This is a digitally signed message part.
- [Duplicity-talk] PAR2 for duplicity,
Gabriel Ambuehl <=