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Re: Backup.

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On Thu, Jun 27, 2024 at 04:06:18PM -0300, Eduardo M KALINOWSKI wrote:

> On 27/06/2024 15:23, peter@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

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Thread

Re: Backup. Eduardo M KALINOWSKI <eduardo@kalinowski.com.br> - 2024-06-27 21:10 +0200
  Re: Backup. Michael Kjörling <c9bc136c6063@ewoof.net> - 2024-06-27 22:00 +0200
  Re: Backup. Paul M Foster <paulf@quillandmouse.com> - 2024-06-27 22:50 +0200
  Re (3): Backup. peter@easthope.ca - 2024-06-30 17:00 +0200
    Re: Re (3): Backup. Andy Smith <andy@strugglers.net> - 2024-06-30 17:40 +0200
      Re: Re (3): Backup. David Christensen <dpchrist@holgerdanske.com> - 2024-06-30 21:20 +0200

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