> > Other people have pretty much answered your questions already, but I'll > pass on my experience with backuppc as well as an extra data point for you. > > I am using the older backuppc 2.1.2pl1 from Debian stable in a few places. > > Originally I was going to do a single full and forever incremental > backups (since we didn't want to delete any backups ever anyway). > However, I found the backup took longer and longer each time, because as > new files were added, the incremental backup was transferring all the > data of all new files/changed file compared to the original full. Of > course, data storage on the backup server only stored a single copy of > the files, even though they were transferred multiple times. > > This was when I changed to do a full every 3 days to reduce the > bandwidth requirement, even though it increased the cpu/disk IO/time to > complete the backup. > > If you want to minimise bandwidth, every backup would be a full (if > using rsync/rsyncd). > > BTW, from what I know, in newer versions, each incremental is compared > to the most recent backup of any lower level. So, you could do a level > 0, level 1, level 2, level 3 ..... level 9, level 0, level 1 etc... > > That way, you only transfer a small amount of data each day, but still > get a quick backup time with the benefits of the incremental. > > You might also want to consider that you don't really lose anything by > having lots of level, you still only restore the latest version of all > files. It isn't like doing a level 0 tape, level 1 tape, etc... you > simply restore what you want and backuppc automatically restores the > latest version of each file. > > Regards, > Adam
Thanks for taking the time to respond, I did learn something from your post though, i didnt know that didnt matter how many levels you have that backuppc would automatically restore the latest version, I was under the assumption that i would have to do it like tape, starting with level 0 and go forward. which is why i was only level 0 and 1 backups, to try and prevent that. What do you think would be the harm in just doing full backups? instead of doing a full and then forever incrementals, if the full backup really only backs up changed files since the last full backup, i really wouldnt need to do incrementals at all, and from what i understand actually get shorter backups and use less bandwidth with full backups, but with more cpu/memory overhead. its a dual xeon 3.2ghz machine with 2gigs of ram, so i think that will be just fine, maybe in the future ill up the ram. thanks again for your post. ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
