Thomas Birnthaler wrote: >> What is the best way to "syncronize" __TOPDIR__ to another location? >> As I found in many messages, rsync isn't possible because of >> expensive memory usage for the hardlinks. > Since version 3.0.0 (protocol 3 on both ends) rsync uses an > "incremental" mode to generate and compare the file lists on both sides. > So memory usage decreased a lot, because just a small part of the list > is in memory all the time. But the massive hardlink usage of BackupPC > causes very slow copying of the whole structure, because link creation > on any filesystem seems to be a very expensive task (locks?) ... >
So it seems possible to make the initial remote backup by dd and after this a daily rsync? Because on a daily basis are (hopefully) not tons of new hardlinks which have to be created on the remote side. >> In my opinion dd or cp -a isn't possible too because they would copy >> all the data. That would consume to much time if I syncronize the >> locations on a daily basis. > Any other tool has the same time consumption if it keeps hardlinks > ("cp" e.g. does that with option "-l"). > > A somehow "lazy" solution would be to just copy the "pool"-Files (hashes > as file names) by "rsync" and create a "tar" archive of the "pc" > directory. I would believe that creating of the tar archive and copying it to the other location will consume nearly the same time, space and bandwidth as dd or cp. Isn't it? > The time consuming process of link creation is then deferred > to the restore case (which may never be needed). > > Thomas br Matthias -- Don't Panic ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ 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/