Paul Slootman wrote: > On Sat 19 Jan 2008, Brian wrote: > >> I guess this is more of an rsync question, but does involve Dirvish too. > > You're right, it is more of an rsync question :) > >> Dirvish keeps around 15 copies of this system (#2) around, of course >> using Hard links as expected. >> >> The other Debian NSLU (#2) has a big hard disk, and every once in a >> while I rsync the vaults dirs of the NSLU (#1) to NSLU (#2) so as to >> give me a second copy of the backups. > > This means you're transferring a list that contains 15 copies of an > image (assuming there's only one image on #1). Doing this while > preserving all hard links is quite memory-intensive, when using current > versions of rsync. > >> Apart from splitting the vault into smaller parts of the system, any > > I'd typically do it by first transferring the first image, and then > transferring the second one in a similar way that dirvish does, i.e. by > using --link-dest that points to the first image, etc. Paul, hmmm, I guess I still haven't understood what exactly --link-dest will do for me? I am rsyncing with -alH (stupid as I see that -a also includes -l), so I am telling rsync to preserve Hard-links and it seems to be doing that too, according to the space usage, and doing an ls-l, it is. I guess I need to read some more.
Cheers Brian > >> ideas how to reduce the memory overhead? Maybe its just a bad idea to >> use dirvish to backup the complete debian system? > > You'll always run into this sooner or later. Nothing wrong with > backuping a complete debian system. > > What you could try is the current prerelease version of rsync 3.0.0; > currently it's prerelease 8. I'm using that for a couple of systems, > and it's much better in doing large lists. For one, it doesn't wait > until the entire list is transferred before beginning with transferring > files. Doe note that you need that version on both ends for the new > protocol to work. > > > Paul Slootman > _______________________________________________ > Dirvish mailing list > [email protected] > http://www.dirvish.org/mailman/listinfo/dirvish > _______________________________________________ Dirvish mailing list [email protected] http://www.dirvish.org/mailman/listinfo/dirvish
