Jean-Christophe Pinoteau writes: > I am newbie on BackupPC and I am planning to use it to backup users > data on several hosts. > > There is a question I couldn't find an answer for in the manual: how > does BackupPC deals with large files like databases ? When BackupPC > creates a new increment will it store the all file or just a delta of > what has changed ? The consideration is quite important regarding to > space planning and bandwidth usage. > > I was thinking to use rsync over ssh (if that makes any difference).
With rsync just the changes in the file will be transferred. So the bandwidth requirements, after the first time, only need to handle the changes. But the complete file is reconstructed and stored on the server, even for an incremental. So a very large file with just a small change requires a new complete copy to be stored on the server (compressed if enabled). Because of pooling, only one copy of each unique file needs to be stored on the server. Craig ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ BackupPC-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
