>You're using the wrong tool -- you want a binary diff program instead.
>Run that on your files, then rsync/tar/cp/whatever the diffs.
Not exactly, I need the rsync algorithm to check the new version
of the file against the checksums of that file calculated
when the previous backup was made, and
>Ah... now I see. Unfortunately, this one's over my head. Can anyone else
>help here? Can rsync deal explicitly with parts of files?
The rsync program can deal with delta files, but just in the batch mode,
unfortunately it is not exactly what I need.
The rsync algorithm instead is exaclty wha
On Thu, Mar 28, 2002 at 09:06:59PM +, Diego Liziero wrote:
> So at every backup the whole 2Gbyte file is saved.
That's exactly what rsync's supposed to do, AIUI. I would be /very/
upset if it didn't make perfect copies. 8-)
> So I would like to use the rsync algorithm to calculate the diff
Diego wrote:
> Right, wonderful, but let's consider a big database file, let's say
> a 2Gbyte file, that is slightly changed every day of about a 10%
...
> So at every backup the whole 2Gbyte file is saved.
...
> So I would like to use the rsync algorithm to calculate the differences
> (delta fi
Thanks, now I know how rsync backup option works.
But I haven't been so clear about what I would like to do.
>> I would like to have a first snapshot (level 0) that is a complete copy,
>> and then other incremental backups that are just delta files
>> (just the differences from the level 0 snaps
> Something similar:
> I would like to have a first snapshot (level 0) that is a complete copy,
> and then other incremental backups that are just delta files
> (just the differences from the level 0 snapshot).
The "normal" utilities for this job would be dump and tar, especially if
you're dumpi
I'm trying to use the rsync algorithm for incremental backups.
After a quick look at rsync I saw the batch mode operations,
and I thought that maybe I can modify them for incremental backups.
What is needed is to add an option to save the checksums of all
the files of the level 0 backup and a se
