Re: backup package - linux

[Marty <martyb@ix.netcom.com>]

Stephen R Laniel wrote:
> On Sat, Apr 16, 2005 at 06:32:26AM +0200, Francisco Cesar da Silva wrote:
> >  Does someone know a simple backup algorithm (probably using several 
> >  disks) that can resurrect a file or a set of files or a whole disk as at 
> > an arbitrary date in the past?  I'm sure this is standard fare for 
> >  experienced sysadmins and comsci graduates.  I don't mind mothballing a 
> >  disk and buying an additional disk once a year for example.
> >   Perhaps there is a package that manages this sort of thing? 
>
> Have you looked into rdiff-backup? It can backup a disk
> remotely over ssh, and you can configure how far back it
> archives your data. Then you can recover a version of a
> given file from a specific date.
>
> Is that what you're looking for?

IIRC rdiff-backup does not support arbitrary date restores, but only 
from those dates and times on which a backup happened.  For arbitrary
date restores it seems like filesystem support, at bare minimum some 
kind of journalling with arbitrary rollback would be required, possibly 
with an rdiff-backup-like algorithm combined with a journaling filesystem.