The words "level 0", and "level 1" and so on make me think your software
must be based in the UNIX "dump" utility.  And dump is about 20 years old
now.
Typically what people did back then was but scripts in the UNIX contab that
ran dump every night.  We used carting tapes back then so it made sense to
have a weekly "level 0" tape and a nightly "level 1".

Many people use rsync in a crontab scrip too.

There are MANY GUI point and click backup systems that actually are just
graphical front ends for either dump or rsync and cron.

Today Apple's Time Machine (TM) is the best there is but it only runs on
Mac OS.   It uses a really smart trick.  Callbacks can be registered www
the the file system so TM can be told of every change and does not have to
waste time scanning for changes then every hour it write those changes to a
disk which is either local or on a server.   After Apple showed how to make
this REALLY easy to use, lots of people took that idea and tried to make
something like Time Machine.  Even MS Window has something like this now.

You wanted a list with links.  Someone already did this....
https://alternativeto.net/software/time-machine/?platform=linux

I have used a few of the ones on the above list.  The last one was Deja Dup
because it was simple to set up.  But of last I've take all the important
files off the Linux machines and moved them to a Synology NAS server.  Now
all my development files are NFS mounted from the Synology so the files are
the SAME on every computer.  then I useSynology's "hyper backup" to make a
local and a cloud based versioned backup.   Actually Synolgy is Linus but
Hyper Backup is not open source.

What use depends on your needs. Do you have a files server?  Are there
Windows and Macs in the mix?   And importantly, how much data do you have.






> I'm forced to comment here, because while I am a long term (about 20
> years now) user of amanda, so I am quite familiar with its concept of
> doing a level 0 within the timeframe of runspercycle, usually stated in
> days, with a chefs choice of backup levels out to 4 or 5 used in between
> fulls, with an eye toward adjusting the schedule to always use the same
> amount of storage on the media during an individual run.
>
>
> But no one has mentioned the name of something that will backup only the
> changes, that can be started in the background to accomplish this
> instant incremental backup while one is working on a project. Does linux
> actually have such a beast? Or is it generally a component of the
> development environment used.
>
> IOW, names please. Your own favorite poisons.
>
> What I'd expect to see at the base is inotifywait session's covering the
> directories involved with your project, that would immediately return
> the name of the file just written, which when that name is returned to
> the parent caller, which in turn causes the parent to make a one higher
> level backup of that file. Probably ought to have a button to make a new
> level 0 at the end of the days work if its working so far but
> incomplete.  Something along those lines. But I don't see a utility like
> that in the repo's.
>
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
>
>
>
> _______________________________________________
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

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