Hi,
Kris Jordan wrote on 30.04.2007 at 17:12:59 [[BackupPC-users] Incremental
transferring same data over and over]:
> Les Mikesell wrote, On 4/30/2007 4:23 PM:
> > If you use rsync as the transport you never actually
> > transfer unchanged files again - you only make a pass
> > over the files comparing block checksums. This takes
> > some time/cpu at each end but not a lot of bandwidth.
>
> I'm using rsync (rsyncd on the client/Windows). I've noticed that
> incremental backups will transfer the same files over and over again,
> until the next full.
actually, I'm just writing a reply in the original thread.
But to answer your question: your setup is behaving as it is supposed to.
Each incremental is relative to the previous backup of lower level (with
level 0 meaning full backup). By default, you only have full and level 1
incremental backups, meaning an incremental is relative to the previous full.
That's documented in the default config.pl preceeding the IncrLevels setting.
> For instance, as a test...
>
> 0 full 10min
> Add a bunch of files.
> 1 incr 6min
> 2 incr 6min
> 3 incr 6min
> 4 full 0.1min
^^^^^^
That is surprising. It should take at least 6 minutes (transferring the same
data as the incrementals). Probably more due to comparing block checksums of
all unchanged files.
Regards,
Holger
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
BackupPC-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/backuppc-users
http://backuppc.sourceforge.net/
