ubuntu backup

[Derek Broughton]

Shantanu Joshi wrote:

> Derek Broughton <derek at pointerstop.ca> writes:
> 
>> Siggy Brentrup wrote:
>>
>>> On Wed, Sep 23, 2009 at 17:44 -0400, Tim Tebbit wrote:
>>>> freeburn wrote:
>>>> > what is the best backup solution for ubuntu?
>>>> tar, rsync, rdiff-backup and or a combination of each.
>>> 
>>> I've been recently pointed to unison, sort of modern
>>> replacement for rsync with improvements in efficiency.
>>> 
>>
>> Unison is certainly not a _replacement_ for rsync, and can't possibly
>> have "improvements in efficiency" - at least in the actual backup - it's
>> a front-
>> end for rsync!  That said, most people I know who use it, love it.
> 
> It's more than just a frontend. 

Well, I shouldn't have said "front end".  But it _uses_ rsync:  "Transfers 
are optimised using a version of the rsync protocol".  It's true that it 
does not explicitly use the "rsync" command or package.  

> It can
> propagate changes both ways if needed, which rsync needs to be told
> which is the 'correct' version.

Sure, but that certainly looks like what you get from a front end - some 
kind of extra logic to simplify and improve the underlying technology.
-- 
derek