Best local backup program for upload to cloud?
ubuntu at prpcompany.com
Fri Dec 5 21:55:29 UTC 2014
On 12/5/2014 11:00 AM, John Hupp wrote:
> I'm still working on a solution for the problems I raised in the
> thread "A survey of GUI-based free online backup."
> I have swung this way and that looking for the best approach. Time and
> again, I have found something that is promising in one regard but
> undesirable in another.
> Here is where I am right now.
> Copy.com offers 15GB of free storage with a Linux client, but the
> client is really just a sync program, and you have to place all your
> files in a designated sync folder. If you don't want to do that, you
> could backup all your user files to the designated sync folder.
> Box.com offers 10GB of free storage. They don't have a Linux client,
> but they do support WebDAV. So you need either a backup program that
> supports WebDAV, or you can use davfs2 to map a local drive to the
> WebDAV resource, and then back up to the mapped drive. In either case
> you need a backup program.
> So with either Copy.com or Box.com, the backup program is a critical
> Notes on a couple of promising backup programs:
> Duplicity (say, with front end Deja Dup) has lots of strengths, but a
> full backup should be run periodically, and you really don't want to
> do that because of the difficulty of a multi-GB upload.
> Duplicity -- why a periodic full backup? See
> where it says:
> /Thus, in principle, you could just create one full backup and
> then use incremental backups for the changes. The developers of
> Duplicity warn customers, however: Not only can a mistake in one
> incremental part ruin the entire backup, but restoring files takes
> quite a long time if the software needs to run through all the
> incremental backups/.
> Duplicati 2 (based on Duplicity) overcomes that problem with an
> approach that reliably merges 100KB diffs into an existing full backup
> (a shameful imprecise description, but at least brief). The 100KB
> chunk size keeps uploads reasonable. It supports Google Drive, MS
> Onedrive, and other destinations. But the Linux version requires
> installing Mono, which can run the Duplicati C# code that also runs on
> .NET Framework under Windows. This is convenient for a small project
> to extend its platform reach, but it seems to me that it introduces
> security risks, since .NET Framework malware does exist. [Note:
> Whether it poses a real risk is still under debate. If the risk is
> imaginary, then Duplicati 2, though still a Preview version, is the
> best solution I have seen.]
> This may be an impossible spec, but I'd like to find a backup program
> - will run in Lubuntu without installing a load of dependencies for
> another environment
> - has a GUI (perhaps largely for the sake of Restores by average users)
> - doesn't require a periodic full backup
> - supports good encryption
> - supports compression
> - supports breaking the backup into nicely uploadable small chunks
> - is not buggy
> - preferably does auto-deletion of older backups, or supports
> versioning, or will send an email when a backup fails
> If that is an impossible spec in the current state of affairs, I'd
> like opinions on the best compromises.
> (I've been using SpiderOak, which has a nice Linux client and 2GB of
> free storage, but that's not much storage these days, and I'd like to
> hit on a better free solution that I can set up on systems that I put
> together for people.)
I've wearied myself nicely, studying this issue for some days.
Some interesting nuggets:
Rsync and rather new front end Grsync are both very actively developed.
Dirvish is another front end. Rsync is of course very proven and widely
acclaimed. It is nonetheless a sync tool rather than a backup tool. To
use it for backup, you have to script a workaround that employs hard
links e.g. http://www.sanitarium.net/golug/rsync_backups_2010.html and
you would also have to script something to manage the full and
incremental "backups." Maybe one of the front ends knows how to handle
those chores, but I have not read any mention of it.
Rdiff-backup is a back end that aims to provide mirror + incremental
backup capabilities as part of its native design. Sounds good. But it
doesn't seem to be actively developed, and there are some problems
reported. There have been a couple front end projects, both of which
have been dormant. But the Rdiffweb front end has a new maintainer with
ambitious plans, including a 2015 new release
In any case, when you are weary the thought of custom-scripting stuff
(especially for a script weakling) or dealing with a buggy old back end
seems extra daunting. There is extra allure for something that just
works, even if it is slightly off-goal.
So I returned to Copy.com, which I previewed above. It turns out that
you get an extra 5GB just for installing the Linux client, so now my
free allocation is 20GB. That's a lot!
It also turns out that you don't have to actually move your files to the
designated sync folder. Copy supports symlinks, so if in the sync
folder you just create a symlink to your home folder, Copy will pick
that up. Cool!
Furthermore, Copy supports 30-days of file versions and also allows you
to un-delete files. Quasi-backup!
Copy is a product of Barracuda Networks, so though this service is
relatively new, it has good backing.
So for the time being, I'm running with Copy.com.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the ubuntu-users