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Backing up in trees with Obnam 1.0

Backing up in trees with Obnam 1.0

Posted Jun 14, 2012 12:59 UTC (Thu) by njs (guest, #40338)
In reply to: Backing up in trees with Obnam 1.0 by oever
Parent article: Backing up in trees with Obnam 1.0

> but also helps backing up compressed archives such as zip files (but not or less for compressed tar files).

If your de-duplicator uses an rsync-compatible rolling checksum, and your tar files are compressed with gzip --rsyncable, then de-duplication should work. (I thought --rsyncable had become the default at some point, but now can't find evidence of this. And sadly bzip2 doesn't seem to have sprouted an --rsyncable option -- maybe the file format requires fixed-size blocks or something.)


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