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Re: [rdiff-backup-users] rdiff-backup file consistency

From: Dominic Raferd
Subject: Re: [rdiff-backup-users] rdiff-backup file consistency
Date: Sat, 09 Jun 2012 12:06:01 +0100
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:12.0) Gecko/20120428 Thunderbird/12.0.1

@David: if you try obnam please let us know how you get on with it.

I guess one could store rdiff-backup repositories on a deduplication file system such as lessfs or zfs and get the de-duplication benefits. And using the --no-compression switch might or might not bring further space savings (as well as, presumably, faster backups/restores/verifies). But I am not sure if any deduplication file systems are reliable enough for backup?

On 09/06/2012 09:37, D. Kriesel wrote:
If I get it right, there is no such thing as deltas. Every generation seems to virtually stand for its own. However, double chunks of data (no matter if being caused by different machines or generations or whatever) are deduplicated in a generalized way. Nice design! As check for duplicate data made before transmission, this could be also very efficient (however, one could still transmit with rsync and than use obnam).

I'll stop spamming this list now with obnam features, however the delta question is the one that arises for sure when other backup systems are mentioned here ;)


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