On 10/18 03:47 , Koen Linders wrote: > I'm trying to backup my cpool and pc's to an external disk attached to the > same computer. Both are: ext3 > > 1) Rsync -avHh for cpool works.
How much data do you have? you'll find that rsync has awful memory requirements once you start getting millions of files you're trying to sync. enough to crush your box. If you have the backuppc data pool mounted on a separate partition; your best bet is likely to be to shut down backuppc, unmount the partition, and copy it with dd. failing that, shut down backuppc (so the disk and system are quiesced), and copy the data pool with tar. I spent a lot of time trying to archive the data pool with tar, using an LVM snapshot. I found that the performance was so bad that it took 4x as long as just quiescing the disk and backing it up without the snapshot. (I suspect mostly due to the backups going on while the archive was working; this destroyed the memory caches in addition to causing many more disk head seeks). It was far better to just quiesce the system and archive it with tar, then start it back up again. -- Carl Soderstrom Systems Administrator Real-Time Enterprises www.real-time.com ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ BackupPC-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
