Hi Christian, On Wed, Sep 09, 2009 at 09:33:03AM +0200, Christian Völker wrote:
> First, my environment: > 28 hosts to back up. Mostly idle machines with minor services (so no big > databases and so on). Partially fileserver with only little daily > changes. So I expected not too much daily changes on the pool. > I want to copy the pool to a remote location after testing is done. > > So I used an USB 2.0 disk as "second backup device" to store the copied > pool. I'd say: Replace that USB 2.0 disk by something else like something connected via Firewire or eSATA. USB 2.0 is very, very slow, especially for random access. > The pool itself is aprox 540GB in total. And is not growing any more- > even not all 12 full backups are stored. > > My first attempt was rsync the pool. This tooks ages. > Second attempt was to "dd" the whole device (with less frequency), but > for the size of the pool, took ages, too. > Third try was to use "dump" for this hoping it would transfer only > changed blocks after the initial dump. No way. After one day it > transferred 300GB (!). I thought, dump might not bee a good solution... > Last attempt now was to move the pool device to a VMware virtual disk > and let rsync run over this file. Thus rsync backing up the block > device. Best attepmt, I thought. Result: rsync transfers after the first > run ~300GB, too. Do you want to try DRBD and see how that works? Might be a more complex setup though.. > So what does this mean to me? > > Looks like on my pool BackupPC changes approx two third of the whole > pool daily. So if I would transfer to a remote site I'd need to transfer > 300GB daily! That sounds far too much for a 540 GB pool. Did you try again the next day? But there is currently no out-of-the-box or best practice to transfer a BackupPC pool to a remote location. Tino. -- "What we nourish flourishes." - "Was wir nähren erblüht." www.lichtkreis-chemnitz.de www.craniosacralzentrum.de ------------------------------------------------------------------------------ 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 [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
