[wellylug] the eternal question - backups

[jumbophut]

On 5/27/05, David Antliff wrote:
> 
> At the moment I am experimenting with SaraB + dar, which seems fairly
> close to what I want to do.
> 

I've read some stuff (which I admit I don't understand) about
copy-on-write features in filesystems which enable you to do snapshots
of the entire filesystem at a single point in time.

So you enable the copy-on-write thing, start backing up, then go about
your normal business.  While the backup is still proceeding, you make
lots of changes to files, but none of those end up in the backup.  The
backup is an entirely consistent snapshot of the state of the system
at at a point in time (some time just before the backup started).

It's not exactly what you were asking about, but it might be
interesting to look into all the same.  If you figure out exactly how
it works, I'd be interested to know.

-- 
Tony (echo 'spend!,pocket awide' | sed 'y/acdeikospntw!, /l at omcgtjuba.phi/')