Christopher Derr wrote: > Greetings, > > We're thinking of using Bacula as our disk-to-disk solution for backing > user and research data. I'm still reading up on it, but I haven't found > the answer to the following question. > > Called pooling in BackupPC and deduplication by industry, I've been > trying to find out if Bacula has it. A search of the site for either > word brings up nothing relevant. Does the current version of Bacula > have the ability to store backups of the same file as one file with links? > > For example: If Bob and Joan both have the exact same 2 MB PDF in their > home directory, a normal backup would store it twice for a total of 4 > MB. What deduplication does, is store the file once in a central > location, and then store links from the individual backups to the file. > If 100 people have this same file, rather than taking up 200 MB of > space, it still only takes up 2 MB. Unique, I believe, to disk-to-disk > backups.
Nope. I'm not aware of any open source backup software that does that. Amanda doesn't do it either. It's non-trivial and has been discussed on the Bacula list a couple of times. Not sure what the key word would be to search for it. In the commercial arena, Retrospect (was Dantz Development, is now EMC) does it. It is aimed at the workgroup environment, and, as far as I know, doesn't scale in the same way that Bacuala and Amanda are intended to. We actually suggest it for our labs and research groups, because they have the money and we don't have the staff to support all of them at that level. They target the backup to a shared drive they own on our server as a disk archive. Then I catch that and periodically copy it to archive tapes using my enterprise backup system. --------------- Chris Hoogendyk - O__ ---- Systems Administrator c/ /'_ --- Biology & Geology Departments (*) \(*) -- 140 Morrill Science Center ~~~~~~~~~~ - University of Massachusetts, Amherst <[EMAIL PROTECTED]> --------------- Erdös 4 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
