[Digikam-users] what do you use for backups?

[Anders Kamf]

Hard links is what rsnapshot use as well to do incremental backup.

2016-06-07 12:57 GMT+02:00 Chris Green <cl at isbd.net>:

> bernhard <digikam at kilmann.net> wrote:
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> >
> >
> > there is quite cool feature in rsync that allows you to sync your backup
> > in a directory on you backup medium. Lets say you want to backup
> > /pictures on your pc in directory /week01 on your usb disk. standard
> > procedure is to do the next rsync against /week01 too which replace
> > changed files.
> >
> > another option is to tell rsync to do the backup of /pictures to lets
> > say /week02 but use /week01 as base. in that case rsync compares your
> > files in /pictures against your files in /week01. If a file is not
> > changed it created an hard link in /week02 pointing to the same file in
> > /week01. if a file is deleted it will not show up in /week02 (but still
> > in /week01). if a file has changed it is copied to /week02 while you can
> > access the old version in /week01. So you can have several versions of
> > your /pictures directory but you need only disk size from /pictures on
> > your pc plus the space for files that change on every extra backup you
> > do. for that you usb drive need to have a linux filesystem like ext4 to
> > support hardlinks.
> >
> Yes, I use this rsync 'hard link' ability with a self-written Python
> script to do incremental backups.  On my main desktop system I do
> hourly and seven days of daily backups, these go onto a different
> drive so at least will protect me from drive failure.
>
> The I do daily, weekly, monthly and yearly incremental backups to a
> remote (well some hundred metres or so) system as well.
>
> Using the rsync hard-link option means that only changes and new files
> occupy space.
>
> --
> Chris Green
> ·
>
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