[ZODB-Dev] Repozo tests -- not

Shane Hathaway shane at hathawaymix.org
Tue Dec 8 20:25:02 EST 2009

Christian Theune wrote:
> Not exactly: it's still a good idea to store away deltas as single large 
> files are still hard to deal with except if you have really good 
> block-level de-duplication in your filesystem. (Uhmm. I guess ZFS 
> probably has all of that. It also probably serves my dinner.)

I would run rdiff-backup on the snapshot.  Quoting the rdiff-backup 
feature list:

"Space efficient: Suppose you have a large database file that changes a 
little bit every day. A normal incremental backup would keep saving copy 
after copy of this database, wasting a lot of space. rdiff-backup uses 
librsync, which implements the same efficient diffing algorithm that 
rsync uses. It works on binary files as well as text, so only a fraction 
of the data in your database would be saved in each incremental backup."



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