On Wed, 2010-10-20 at 17:51 -0400, Joshua Judson Rosen wrote: > Cole Tuininga <co...@code-energy.com> writes: > > > > On 10/20/2010 01:31 PM, Tyson Sawyer wrote: > > > I've been using backup-pc with good results. I started making my own > > > rsync scripts and decided that I had better things to do and backup-pc > > > had already done a better job than I ever would. > > > > Seconded. I've been using rsnapshot for backups for quite some time, > > but backuppc (once set up) has a lot more options to simplify > > restoration, etc. I've been working on switching over to it myself. > > I've been thinking of moving to rsnapshot myself (from my own > mostly-equivalent script), but now I see that, according to Debian's > statistics, it looks like rdiff-backup is about twice as popular: > > http://qa.debian.org/popcon-graph.php?packages=rdiff-backup > > http://qa.debian.org/popcon-graph.php?packages=rsnapshot > > > Is there a reason for that?
rdiff-backup keeps difference deltas on the files. It also preserves hard-links. This is handy for dealing with files where deltas are not very useful. I backup those (non-delta) files - typically web sites where lots of files are replaced - with dirvish. I believe that's now a dead project, but has been working for me. dirvish creates date named directories (e.g. 2010-10-19) with unchanged files hard-linked across the proper range of date directories. (I assume rsnapshot uses a similar hard-link approach.) I use rdiff-backup to handle the dirvish directories and everything else. rdiff-backup is not locked into a daily schedule like dirvish, but simply creates new deltas each time it runs. So long as you want the most recent version of a file, you can simply copy it out of the backup directory tree. Restoring to a point in the past requires using the rdiff-backup command-line interface to specify the desired point in time for restoration. Then use tapes or external drives to capture the rdiff-backup directory tree and store them off-site. There is no incremental tape backup. You have the full history on every tape. You can efficiently layer rdiff-backup over rsnapshot, but probably not the reverse. -- Lloyd Kvam Venix Corp DLSLUG/GNHLUG library http://dlslug.org/library.html http://www.librarything.com/catalog/dlslug http://www.librarything.com/catalog/dlslug&sort=stamp http://www.librarything.com/rss/recent/dlslug _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/