Pool is about 108 GB. I already saw the system go down to a very very slow pace when trying the rsync everything.
The backuppc folder is on the same partition as my samba shares so i rather not unmount it every night for backups. It depends how long it takes to backup 250-350 GB with dd. On Thu, 18 Oct 2007 16:08:45 +0200, Carl Wilhelm Soderstrom <[EMAIL PROTECTED]> wrote: > 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. > ------------------------------------------------------------------------- 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/
