-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Rob Owens wrote: > Adam Goryachev wrote: >> Holger Parplies wrote: >>> a) rsync full backups are only minimally more expensive than incrementals in >>> terms of bandwidth. Still, every file needs to be completely read from >>> disk >>> on both sides, so there is a good reason to offer an "incremental" mode >>> as >>> a speedup. >> BTW, 2 x rsync incrementals of the same level will transfer more data >> than one full + one incremental. So for example, doing 6 incrementals >> followed by a full backup can in fact transfer a lot more data than >> doing 7 full backups. >> >> eg, if a file changes after the full backup, then each incremental >> backup will re-transfer those changes. While a full will transfer the >> changes but the following full/incremental will not re-transfer those >> changes. >> > This situation can be avoided by setting IncrLevels to 1, 2, 3, 4, 5, 6 > > This way each incremental is based on the previous incremental, and not > the previous full. (Assuming you get a full backup every 7 days).
Also assuming you use backuppc 3.0 or newer, which means it is not available for me as I am using debian stable packages. (Although, I hear the next debian stable should be out pretty soon, in which case I'll get the newer version then :) In the meantime, I simply doubled the frequancy of the full backups, and adjusted the max keep values for full backups etc... Regards, Adam -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIv/XVGyoxogrTyiURAreAAJ4h/VB7dWgXfqB2RXgAd5+9cR+NtQCeIHSl aXC1XUulRhpv7QPMhUdsH2w= =HYZq -----END PGP SIGNATURE----- ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
