This is something it took me two years of using BackupPC before I realized... BackupPC doesn't treat "full" and "incremental" quite the way you expect.
When BackupPC does an rsync incremental, it compares to the last full for purposes of deciding what to download and *then* does deduplication against the pool. If you do a full on Sunday, and then a user saves a 100G file to the client, every rsync incremental will transfer the entirety of that 100G of data, over and over, until that file is backed up in the next full. So if you take one full and never take a full again, your incremental sizes will keep growing, and BackupPC will keep downloading the same data over and over. If you do what you want, you'll actually be creating the problem you're trying to avoid. rsync full backups don't download all the raw data every time... the main reason they take longer is running checksums against every file instead of just the files that have changed meta-data. If a full transferred all the data every time, full backups of my remote server would take hours instead of 30 minutes. It's still taking advantage of rsync to not transfer bytes it doesn't need. -- Carl D Cravens ([email protected]) "Then I will smite thee with adware!" - Bucky Katt ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ 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/
