On Thu, Jun 27, 2024 at 04:06:18PM -0300, Eduardo M KALINOWSKI wrote: > On 27/06/2024 15:23, pe...@easthope.ca wrote: > > Now I have a pair of 500 GB external USB drives. Large compared to my > > working data of ~3 GB. Please suggest improvements to my backup > > system by exploiting these drives. I can imagine a complete copy of A > > onto an external drive for each backup; but with most files in A not > > changing during the backup interval, that is inefficient. > > rnapshot
Rsnapshot is written in Perl and is based on an article: http://www.mikerubel.org/computers/rsync_snapshots/ I read that article a while back, and not knowing of the existence of rsnapshot, I modified my existing bash/rsync backup script to use this guy's methods. In essence, rather than backing up the same file again with rsync, you just make a hard link to it. All "copies" of that file on the backup link to that one copy. Saves a tremendous amount of room. I keep 7 backup directories on my backup drives (one for each day), and a cron job fires of the backup each day. You can take a look at the script at: https://gitlab.com/paulmfoster/bkp Paul -- Paul M. Foster Personal Blog: http://noferblatz.com Company Site: http://quillandmouse.com Software Projects: https://gitlab.com/paulmfoster
