On Tue, Nov 5, 2013 at 4:25 PM, <m.roth at 5-cent.us> wrote: > >>> >>> Yeah, I know, we're trying to move stuff around, that's not infrequent, >>> given the amount of data my folks generate. >> >> And that's the other place that backuppc will help. If you move a >> file that is already in an existing backup, backuppc's rsync will copy >> it over the network because it doesn't have a match in that location, >> but when it goes to add the compressed copy to the pool it will notice >> that there is already a file with identical content there and use a >> hardlink instead of needing additional space. >> > > Um, but rsync will already do that. No, rsync itself will only do it when the identical file is still in the identical path from the identical host. > Anyway, when I mean move things, I > meant whole backups to a less-full drive, or the much rarer times that we > need to move a user who's using a *large* amount of space. Backuppc will match up identical content, no matter where it finds it. If it is a different copy or moved to a different location it does have to transfer it to the backuppc server, but then it will be discarded and replaced with a link to the existing pooled copy. -- Les Mikesell lesmikesell at gmail.com