How I do it is to define an array of paths that I want to backup, then iterate over them. I will send some example code when I am next near an actual computer (I only have my phone tonight).
Sent from my Android device. Please excuse my brevity. On Jul 26, 2011 8:49 PM, "Joe S" <[email protected]> wrote: > I am using ext3 for a filesystem. I used 'du -hs' to calculate > the disk usage. Each of the backups: backup.1 through backup.7 > are each 12G, but squeeze shows 17G. From from what I understand > with the 'link-dest=DIR' option I have backup.0 linked to > backup.1, so only changed or new files should copied over to > backup.0 and the rest should be hard linked to backup.1. /etc, > /root /boot /usr/local only take 50M and the files in /home/joe > that I backup don't change much. I don't have any files in there > that I have hard linked. I used this article to learn about the > link-dest=DIR > http://blog.interlinked.org/tutorials/rsync_time_machine.html > > I didn't have trouble with incremental backups when I just backed > up /home, but adding other directories: /etc/ /usr/local/ /root > and /boot has changed things. > > On Monday 25 July 2011 11:52:07 pm Mark Carlson wrote: >> What filesystem and how many files do you have? Millions of >> hardlinks repeated 8 times would take up quite a bit of >> space. >> >> Alternately, there may just be 5GB worth of changes made to >> files. Are you backing up any databases? Large compressed log >> files? Web browser cache? Software updates? >> >> I suppose the tool that is calculating disk usage may not be >> handling hard links in a useful way. How are you calculating >> the disk usage exactly? Are backup.1 through backup.7 all the >> same size or do they vary quite a bit? >> >> -Mark C. >> >> On Mon, Jul 25, 2011 at 7:27 PM, Joe S <[email protected]> wrote: >> > I have a question for someone with experience with rsync >> > backups. >> > >> > I am using rsync for incremental backups. I am backing up >> > from one hard drive to another: backing up directories >> > under / on one hard drive to /mnt/backup/squeeze/backup.0 >> > on the second hard drive. On the second hard drive I am >> > using rsync with the hard link option (link-dest=) to link >> > backup.0 to the previous backup (backup.1). >> > >> > I checked the amount of space used on the backups on >> > /mnt/backup/squeeze/ >> > Each backup from backup.0 to backup.7 under squeeze is 12G. >> > The total for squeeze is 17G. All the backups are hard >> > linked and I am not making much for changes. Why am I >> > adding 5G? >> > >> > Thanks >> > >> > Backup Script >> > #!/bin/bash >> > mount /mnt/backup >> > cd /mnt/backup/squeeze/ >> > rm -rf backup.7 >> > mv backup.6 backup.7 >> > mv backup.5 backup.6 >> > mv backup.4 backup.5 >> > mv backup.3 backup.4 >> > mv backup.2 backup.3 >> > mv backup.1 backup.2 >> > mv backup.0 backup.1 >> > cd / >> > rsync -am --delete-after --filter="merge >> > /root/scripts/filter- rule" --delete-excluded \ >> > --link-dest=/mnt/backup/squeeze/backup.1 \ >> > / /mnt/backup/squeeze/backup.0 >> > umount /mnt/backup >> > >> > >> > Filter rule: >> > - /home/joe/downloads/ >> > - /home/joe/.local/share/Trash/ >> > + /home/ >> > + /etc/ >> > + /root/ >> > + /boot/ >> > + /usr/ >> > + /usr/local/ >> > - /usr/* >> > - /* >> > >> > _______________________________________________ >> > clug-talk mailing list >> > [email protected] >> > http://clug.ca/mailman/listinfo/clug-talk_clug.ca >> > Mailing List Guidelines (http://clug.ca/ml_guidelines.php) >> > **Please remove these lines when replying >> >> _______________________________________________ >> clug-talk mailing list >> [email protected] >> http://clug.ca/mailman/listinfo/clug-talk_clug.ca >> Mailing List Guidelines (http://clug.ca/ml_guidelines.php) >> **Please remove these lines when replying > > _______________________________________________ > clug-talk mailing list > [email protected] > http://clug.ca/mailman/listinfo/clug-talk_clug.ca > Mailing List Guidelines (http://clug.ca/ml_guidelines.php) > **Please remove these lines when replying
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