[Dirvish] Subsequently expanding the tree?

Isaac W Traxler traxler at lsu.edu
Fri May 1 22:01:11 UTC 2015

You could do the following:
- make a new backup for home
- initialize it
- move all of your existing stuff into the directory
- run the hardlink command: hardlink /backup/system/home  (or whatever it 
is called)

This does mean that for a while you have duplicate files. It might work to 
just change your config and then do an init and then the hardlink (without 
the moving...).

After my backups finish, I actually run ardlink on each of them (every 
file system I backup goes to a unique file system on the backup server). 
Dirvish/rsync is simply comparing the current server to yesterday. If a 
file keeps alternating between two versions you will have lots of unique 
copies of it. By running the hardlink command you discover the redundant 
files and eliminate them.

Isaac Traxler                             AIX,Linux Admin
Louisiana State University, LONI          traxler at lsu.edu
High Performance Computing                225-578-1923
Storage & Infrastructure

On Fri, 1 May 2015, Vortex wrote:

> Date: Fri, 1 May 2015 10:31:22
> From: Vortex <vortex at versanet.de>
> Reply-To: Dirvish user and developer mailing list <dirvish at dirvish.org>
> To: dirvish at dirvish.org
> Subject: [Dirvish] Subsequently expanding the tree?
> Greetings,
> how can I change the tree in the default.conf for future backups so that
> dirvish still recognizes the existing files for hardlinks?
> Say, I have images for /home/user an now I want to save the whole /home.
> I tried to change the tree in default.conf from /home/user to /home and
> moved the contents of the last good image in /bank/vault/tree to
> /bank/vault/tree/home to match the new tree path. But dirvish didn't
> recognized the data in /home/user to be the same in
> /bank/vault/tree/home/user and copied all data anew.
> I don't want to lose the hardlinks for the already backed up data.
> Of course, I could just make another tree for /home *except* /home/user
> but I want to keep the whole directory structure as it is in the original.
> I hope I made myself understandable. ;)
> Cheers
> Vortex
> -- 
> "Computer games don't affect kids; I mean if Pac-Man affected us as
> kids, we'd all be running around in darkened rooms, munching magic
> pills and listening to repetitive electronic music."
> -- Marcus_Brigstocke, english comedian and satirist

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