[XCSSA] Rsync usage

[X-otic Computer Systems of San Antonio]

Follow this along:
	http://www.sanitarium.net/golug/rsync_backups.html

Tweeks


On Monday 14 January 2008 20:22:59 X-otic Computer Systems of San Antonio 
wrote:
> Hi everyone,
>
> I know some people on this list are familiar with rsync, and I'm
> searching for some information.
>
> I'm using rsync to sync directories on two different servers.  The files
> in the directories currently total about 1.8Gig of space.  And I'd like
> to keep about seven days of incremental backups on the backup server.
>
> But on the second (backup) server, I'm trying to conserve disk space.
> Right now, I have a script duplicate Monday's backups to Tuesday and
> then rsync runs against Tuesday's copy.  Of course, it duplicates
> anything changed on the main server to the backup server.  But that
> means that a lot of files not changed on the main server are also in the
> new day's directory on the backup server.  And that's where the disk
> space is being eaten up!
>
> I'd like to find a way to get rsync to compare directories and copy the
> changed files to a different  subdirectory on the backup server.  Does
> anyone know how to do this with rsync?  Or am I stuck with a secondary
> script deleting any unchanged file in the new day's backup folder???
>
>
>
> Chuck