PROPOSAL: --link-hash-dest, additional linking of files to their
helge.jensen at slog.dk
Fri Dec 3 11:29:34 GMT 2004
I'm using the excellent --link-dest option on rsync to do every-day full
backups of a number of servers. These servers share most of the
file-system content, but of course has some variations.
In order to reduce the space used for each backup, I was thinking about
linking all files in the backups to their hash in a separate directory,
allowing only one storage of each file-value, reducing my backup-needs
with ~5Gb per machince.
Further this would allow rysnc to represent moved files without any
space-usage at all, for example rotated backups and user-moved files fit
I realize, that there may be problems with file-system performance on
such large directories, but that could probably be workarounded by using
For cleanup, one could find all the files in the --link-hash-dest
directory with only 1 link.
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