Re: [rsnapshot-discuss] compression?

[Francis G. <wi...@ro...>]

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Like a tar.gz of the changed files?

You'd have to keep at least one set (the latest I guess) of files
uncompressed... Maybe if you compressed each file individually, but with
the abundence of small files on most systems that would be kind of
crazy. The hard part here would be to rsync between the latest
incrimental and the update when the incrimental isn't the same anymore.

A compressed filesystem would probably be the only way to go with
rsnapshot, you can't maintain hardlinks (which rsnapshot uses to save
space between duplicate files) across different filesystems and once you
tar/zip a file it's now got another copy of the data.

"tar -cvzpf " will copy and compress data into a tar.gz file if you want it.

Other products (like symantec ghost for example) will keep incrimental
backups in files and occationally do a full "baseline" backup so you
don't need every file from the begining to do a restore. It's a
different method and it has it's drawbacks but it does allow for
compressed backups and entire incrimentals (or baselines) in one file.

- -Francis


Sharon Kimble wrote:
> Are there any plans to include folder compression into the scheme of things so 
> that you would end up with a tar/tar.gz/zip file please?
> 
> If not, can I suggest it for a feature request?
> 
> Sharon.
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