On Wednesday 16 January 2019 04:46:14 Chris Albertson wrote:

> 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.

Nope, using the latest tar.

> 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".

What does eclipse do?
>
> Many people use rsync in a crontab scrip too.

Thats not what rsync is designed for. Using it for this is scary.

> 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'd say 100 megs of space, to be served by a directory amanda would 
ignore on the 2T drive it uses for nightly's would be a great plenty for 
working on a machine configuration stuffs. Thats what this align thingy 
basically is. And in this case, I am inclined to think diff might be the 
tool. Basically do a full when deciding that its stable enough to be 
used for further testing, an anchorpoint, then anytime a change write is 
done, generate a new diff.
>
> > 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.

I've installed backintime but clueless about whats next. Since this box 
has spinning rust, tons of it on a 1T drive, I've made a backup dir 
in /home/gene, and will see if I can configure it to backup only 2 
directories, the home configdir for this new machine, and the nc_files 
and deeper. Or, since the gui shows progile selections, it looks as if 
that could be 2 separate backups. Then see if inotifywait can be used as 
a trigger.

Looks like fun & surprises, help, since theres none in the manpage, in 
configuring this toy appreciated.

Thanks.

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>



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