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[Duplicity-talk] Robustness of incremental backups?
From: |
Olivier Croquette |
Subject: |
[Duplicity-talk] Robustness of incremental backups? |
Date: |
Tue, 09 Oct 2007 11:29:48 +0200 |
User-agent: |
Internet Messaging Program (IMP) 3.2.5 |
Hi all
I am still elaborating my backup strategy, and I was wondering how often I
should do full backups.
The underlying question is: how robust are incremental backups?
Let's say I have the following chain:
Full 0 (t0)
+ Incr 1 (t0+1w)
+ Incr 2 (t0+2w)
+ Incr 3 (t0+3w)
+ Incr 4 (t0+4w)
What happens if for one reason Incr2 is broken?
Can duplicity recover anything newer than Incr2?
Will I get any warning when trying to do more incremental backups?
I could see the following causes for broken increments:
- bug in duplicity, gpg, rdiff or other
- corruption or deletion of one or several tgz on the server
I guess I could test it live, but I was wondering if duplicity had been designed
to recover from such situations.
Regards
--
Olivier
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