I use borg and am very happy with it. As Chris, I only backup /home, everything else is replaceable. Oh, I occasionally make a backup of /etc also.
I back /home and /etc because if I missed a config change then I need /etc to rebuild. As pointed out a list of installed packages is use full to backup as well. I put that info in a file in /etc.
(I keep all config in a svn repo - so should not need the /etc backup. But sometimes I miss an edit that matters and the /etc backup is noise compared to /home).
Some times I have critical app data in /var and back that up as needed.
Barry
On Sun, 2022-08-14 at 21:04 -0500, Richard Shaw wrote:
> On Sun, Aug 14, 2022 at 7:29 PM Cameron Simpson <cs@xxxxxxxxxx>
> wrote:
>
> > On 14Aug2022 15:22, Emmett Culley <lst_manage@xxxxxxxxxxxxxxx>
> > wrote:
> > > I've been using BackupPC for many years. It can use rsync via
> > > ssh for
> > > remote backups or rsync directly for local (LAN) backup. It can
> > > automatically dedup as well.
> >
> > We had a client using BackupPC. Maybe for a single PC it works
> > well.
> > They were backing up several (well over 10) PCs to a NAS. It
> > hammered
> > the system in both I/O and CPU. Combined with some (old kernel)
> > filesystem bugs, it would mangle the filesystem. It seems to do the
> > rsync protocol _in Perl_ at the BackupPC end, and uses an elaborate
> > hash-named file tree for the deduplication function. It needed a
> > special
> > web interface to browse/restore.
> >
> > It kind of works, but does not scale.
> >
>
> Looks like you haven't taken a look in a while. BackupPC 3.x used a
> perl
> version of rsync to add the extra stuff it needed to work, but
> BackupPC 4.x
> (which has been released for a few years now) forked rsync to provide
> the
> magic. It also now uses sqlite instead of hard links to manage
> deduplication.
>
> I only backup about 6 computers but it's for a home environment. I've
> currently got 6.36TB backed up only consuming 675GB of space.
Just for comparison, using Borg my backup info shows:
Original size Compressed size Deduplicated size
2.91 TB 2.23 TB 121.89 GB
(i.e. the actual disk usage is 121.89GB)
That currently holds 22 backup sets (monthly, weekly and daily) going
back a couple of years.
poc
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