Re: What tool can I use to make efficient incremental backups?
On Thu, 17 Aug 2017 11:47:34 -0500
Mario Castelán Castro <marioxcc.MT@yandex.com> wrote:
> Hello.
>
> Currently I use rsync to make the backups of my personal data, including
> some manually selected important files of system configuration. I keep
> old backups to be more safe from the scenario where I have deleted
> something important, I make a backup, and I only notice the deletion
> afterwards.
>
> Each backup snapshot is stored in its own directory. There is much
> redundancy between subsequent backups. I use the option "--link-dest" to
> make hard links and thus save space for files that are *identical* to an
> already-existing file in the backup repository. but this is still
> inefficient. Any change to a file, even to its metadata (permission,
> modification time, etc.), will result in the file being saved at whole,
> instead of a delta.
>
> Can you suggest a more efficient alternative?
There's Borg, which apparently has good deduplication. I've just
started using it, but it's a very sophisticated and quite popular piece
of software, judging by chatter in various internet threads.
https://borgbackup.readthedocs.io/en/stable/
Celejar
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