On 15 June 2015, Nick Holland <n...@holland-consulting.net> wrote:
[...]
> In the first case, an rsync-based backup is probably almost impossible
> to beat. Combine with the --link-dest option (google for it. the
> man page is accurate, but you won't probably understand the full
> implications of this. When you are grinning from ear-to-ear and
> saying "oh wow" over and over, you got it), you can have rotated
> backups with minimal BW and disk usage, AND files on the backup system
> are directly viewable and usable (and every backup after the first
> is incremental, and every backup directory is a "full"). I've used
> systems like this for over a decade now, and I can't over-state how
> powerful and useful they are BEYOND simple backup and restore, I keep
> finding new uses for this type of system. Downside: can't really
> do bare-metal restores, and when crossing OSs, I've had issues with
> ownerships and permissions.
[...]
The other downside, if you use the --link-dest option, is that
there's always only one copy of each file. A few days ago there was
a post on SO by somebody who used that system, and found out that his
backup disk had bad sectors in the middle of some large files. He
wasn't amused.
Regards,
Liviu Daia
